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Electrical process heaters

Electrical process heaters are designed for efficiently heating liquid or gaseous flowing fluids. The design is based on the general conditions such as the type and properties of the respective fluid, pressure and temperature as well as the desired operating points in the process.

Electrical process heaters directly heat fluids, converting electrical energy in the heating rods to thermal energy. The thermal energy is then transferred from the heating rods to the fluid. Here, it is important that the design be matched to the general conditions, for each fluid has its specific properties.

G H I J B E C D F
 

also available in explosion-proof design

 
Individual Advice Download Info
 
Fluids

For example, these fluids are heated in electrical process heaters:

I. Water

  • Drinking water, max. surface load 4 – 6 W/cm² pending on the water
  • Circulating and/or heating water, max. surface load approx. 10 W/cm²
  • Softened water; observe the maximally admissible chloride content, max. surface load approx. 10 W/cm²
  • Ultra-pure water; here, a virtually low-pocket or pocket-free design with defined surface quality is useful.
  • Fully desalted water; here, non-ferrous heavy metals should not be used, maximum surface load approx. 10 W/cm²

II. Oil

  • Heavy oil, not pumpable in a cold condition, maximum surface load between 1 and 2 W/cm² depending on the quality
  • Hydraulics oil, maximum surface load approx. 0.6 – 1.2 W/cm²
  • Lubricating oil, steam turbine oil, max. surface load approx. 1 W/cm²
  • Insulating oil, maximum surface load approx. 0.3 – 0.6 W/cm²
  • Heat transfer oil, film temperature calculation acc. to DIN 4754 required, maximum surface load approx. 10 W/cm² depending on the flow velocity and oil
  • Fuel oil, diesel, heating to max. 40 °C, max. surface load approx. 4 W/cm²

III. Gases

  • Air
  • Natural gas
  • Flue gas
  • Nitrogen
  • Steam for overheating
Materials

The fluid to be heated and the application temperature mainly define the materials which can be used for the unheated and/or heated surfaces. Otherwise, corrosion may quickly result in a failure of the flow-type heater, for example.

Materials of the wetted and unheated components

  • Carbon steel
  • Corrosion-resistant stainless steel
  • Heat-resistant stainless steel
  • Titanium, Hastelloy, special materials
  • Brass

Materials of the heating surface:

  • Carbon steel
  • Corrosion-resistant stainless steel
  • Heat-resistant stainless steel
  • Titanium, Hastelloy, special materials
Heating elements

The design of the individual heating elements is a function of the application. There are faster or slower heating elements, mechanically robust or more filigree designs. Also, a distinction is made between compacted heating elements and heating elements where the internal heating insert can be replaced without the necessity of draining the fluid.

I. Heating elements

  • Tubular heaters, diameter 8.5 or 16 mm
  • Cartridge-type heaters, diameter 16, 18 or 25 mm
  • Exchangeable heating elements, including a protective tube, diameter 25, 42 or 65 mm
Control equipment

Electrical process heaters can both be equipped with a built-in control system (for low power) or an external switchgear cabinet or for load switching by customer-provided switchgear and control gear. The electrical heating power can be divided into one or several heating stages. This division can individually be adjusted to match the control equipment.

I. Controllers

      •  Electronic ON-OFF control or PID control. (-> ON-OFF control switches off the heater if the temperature is exceeded, and switches it on again when the temperature falls below its lowest value. Thus, the temperature will always oscillate around the setpoint. The algorithm of the PID controller will optimally compensate the control fluctuations.)

      •  Load switching by contactors or wear-free semiconductors (thyristors). (-> contactors are wearing parts and must be replaced after approx. 100,000 make/break operations; thyristors switch quickly and without any wear but generate more heat losses than contactors.)

      • Electromechanical control. Thermostats installed in the electrical flow-type heater are price-efficient controllers whose accuracy is sufficient for many applications.

 

II. Sensors

    • Thermal protectors and limiters as capillary thermostats (as a safety design as well).
    • Temperature sensors for the fluid and heating rod temperature.
    • Overheating protection for the heater or electrical terminal compartment.
Switching devices

The switching devices as required for the operation of the process heater can optimally be matched to the process and the heating element they can be ordered from heatsystems

Also, the communication of the switching devices with the higher-level control system will of course be matched to the requirements exactly.

 

I. Switching devices

  • Flow-monitoring device
  • Low-water level protection
  • Min. and max. pressure limiter
  • Thermometer for indicating the temperature on site
Insulation

The electrical process heaters can be delivered without insulation (for a customer-provided insulation) or with insulation. The insulation can be designed as follows:

I. Insulation material

  • Mineral wool with a galvanized or aluminium-coated metal jacket.
  • Diffusion-tight or gas-tight insulation
  • Insulation for indoor or outdoor installation
Fluid connections

We are prepared to agree with you on the type and position of the fluid connections. The following connections are available:

I. Fluid connections

  • Standard flanges (DIN, ASME, SAE etc.)
  • Female or male thread connections
  • Clamp flanges
  • Sterile flanges
  • Dairy-type pipe connections
Similar products

The following products may also be of interest to you:

Let us talk about it!

Give us a ring!
After all, we do not sell
nails.

E-Mail info@heatsystems.de
Phone: 02265 99 70-0
Fax: 02265 99 70-70

News

ISO 9001:2015

heatsystems has just passed the audit for the new ISO 9001:2015

More Info

blocked filetypes in mails

potentially dangerous
filetypes are blocked

More Info

News

Events

PRC Europe 2017

heatsystems exhibits at the PRC europe in Haburg.

From May 22nd to 23rd 2017.

More Info

Powtech 2017

heatsystems exhibits at Powtech 2017.
September 26th to 28st 2017

More Info

Events

Heatpedia

What to do, if?

Help; the heater does not work as it should!
We stand by you with advice and assistance

Learn more

What is needed?

A heater alone is not everything.
More is needed!

Learn more

Electrical flange heaters

Electrical flange heaters are designed for efficiently heating liquid or gaseous fluids which are flowing or stagnant. The design is based on the general conditions such as the type and properties of the respective fluid, pressure and temperature as well as the desired operating points in the process.

Electrical flow-type heaters directly heat fluids, converting electrical energy in the heating rods to thermal energy. The thermal energy is then transferred from the heating rods to the fluid. Here, it is important that the design be matched to the general conditions, for each fluid has its specific properties.

G H I J B E C D F
 

also available in explosion-proof design

 
Individual Advice Download Info
 
Fluids

For example, these fluids are heated in electrical flange heaters:

I. Water

  • Drinking water, max. surface load depending on the water hardness 4 – 6 W/cm²
  • Circulating and/or heating water, max. surface load approx. 10 W/cm²
  • Softened water; observe the maximally admissible chloride content, max. surface load approx. 19.0 W/cm²
  • Ultra-pure water; here, a low-pocket or pocket-free design with a defined surface quality is useful in most cases.
  • Fully desalted water; here, non-ferrous heavy metals should not be used, maximum surface load approx. 10 W/cm²

II. Oil

  • Heavy oil, not pumpable in a cold condition, maximum surface load between 1 and 2 W/cm² depending on the quality
  • Hydraulics oil, maximum surface load approx. 0.6 – 1.2 W/cm²
  • Lubricating oil, steam turbine oil, max. surface load approx. 1 W/cm²
  • Insulating oil, maximum surface load approx. 0.3 – 0.6 W/cm²
  • Heat transfer oil, film temperature calculation acc. to DIN 4754 required, maximum surface load approx. 10 W/cm²depending on the flow velocity and oil
  • Fuel oil, diesel, heating to max. 40 °C, max. surface load approx. 4 W/cm²

III. Gases

  • Air
  • Natural gas
  • Flue gas
  • Nitrogen
  • Steam for overheating

IV. Other fluids

  • Bitumen (attention when melting: bitumen will expand strongly.)
Materials

The fluid to be heated and the application temperature mainly define the materials which can be used for the unheated and/or heated surfaces. Otherwise, corrosion may quickly result in a failure of the electrical flange heater, for example.

Materials of the wetted and unheated components:

  • Carbon steel
  • Corrosion-resistant stainless steel
  • Heat-resistant stainless steel
  • Titanium, Hastelloy, special materials
  • Brass

Materials of the heating surface:

  • Carbon steel
  • Corrosion-resistant stainless steel
  • Heat-resistant stainless steel
  • Titanium, Hastelloy, special materials
Heating elements

The design of the individual heating elements is a function of the application. There are faster or slower heating elements, mechanically robust or more filigree designs. Also, a distinction is made between compacted heating elements and heating elements where the internal heating insert can be replaced without the necessity of draining the fluid.

I. Heating elements

  • Tubular heaters, diameter 8.5 or 16 mm
  • Cartridge-type heaters, diameter 16, 18 or 25 mm
  • Exchangeable heating elements, including a protective tube, diameter 25, 42 or 65 mm
Control equipment

Electrical flange heaters can both be equipped with a built-in control system (for low power) or an external switchgear cabinet or for load switching by customer-provided switchgear and control gear. The electrical heating power can be divided into one or several heating stages. This division can individually be adjusted to match the control equipment.

I. Controllers

  • Electronic ON-OFF control or PID control. (-> ON-OFF control switches off the heater if the temperature is exceeded, and switches it on again when the temperature falls below its lowest value. Thus, the temperature will always oscillate around the setpoint. The algorithm of the PID controller will optimally compensate the control fluctuations.)

  • Load switching by contactors or wear-free semiconductors (thyristors). (-> contactors are wearing parts and must be replaced after approx. 100,000 make/break operations; thyristors switch quickly and without any wear but generate more heat losses than contactors.)

  • Electromechanical control.
  • Thermostats installed in the electrical flow-type heater are price-efficient controllers whose accuracy is sufficient for many applications

II. Sensors

  • Thermal protectors and limiters as capillary thermostats (as a safety design as well).
  • Temperature sensors for the fluid and heating rod temperature.
  • Overheating protection for the heater or electrical terminal compartment.
Switching devices

The switching devices as required for the operation of the electrical flange heater can optimally be matched to the process and the heating element; they can be ordered from heatsystems

I. Switching devices

  • Flow-monitoring device
  • Low-water level protection
  • Min. and max. pressure limiter
  • Thermometer for indicating the temperature on site
Insulation

Normally, the cooling section of the electrical flange heaters (i.e. the section between the flange plate and the electrical terminal box) must normally not be insulated. If this is required for technical reasons, e.g. at fluid temperatures below the freezing point, we are prepared to design a customized model.

Flange connections

The electrical flange heaters - as the name implies - are flanged to the container or the flow tube. A number of options is available for this flange connection:

I. Flange connections

  • Standard flanges (DIN, ASME, SAE etc.)
  • Female or male thread connections
  • Clamp flanges
  • Sterile flanges
  • Dairy-type pipe connections
  • SAE flanges
Design models

Available design models for electrical equipment and controlling of the electrical flange heater are:

I. Design models

  • Indoor or outdoor installation
  • Hazardous area (zone 1 or 2, 21 or 22)
  • Non-harzardous area
  • Type of protection IP54 or better
  • Switchgear cabinet for wall or floor mounting
  • Steel sheet connection housing, powder-coated or stainless steel
  • Electronic or electromechanical control
  • Communication with higher-level control system by floating contacts, standardized signal or bus
Similar products

The following products may also be of interest to you:

Let us talk about it!

Give us a ring!
After all, we do not sell
nails.

E-Mail info@heatsystems.de
Phone: 02265 99 70-0
Fax: 02265 99 70-70

News

ISO 9001:2015

heatsystems has just passed the audit for the new ISO 9001:2015

More Info

blocked filetypes in mails

potentially dangerous
filetypes are blocked

More Info

News

Events

PRC Europe 2017

heatsystems exhibits at the PRC europe in Haburg.

From May 22nd to 23rd 2017.

More Info

Powtech 2017

heatsystems exhibits at Powtech 2017.
September 26th to 28st 2017

More Info

Events

Heatpedia

What to do, if?

Help; the heater does not work as it should!
We stand by you with advice and assistance

Learn more

What is needed?

A heater alone is not everything.
More is needed!

Learn more

shell and tube heat exchangers

Tubular heat exchangers transfer the thermal energy of a fluid to another one. Therefore, their name is tubular heat exchanger. The fluids involved are mainly liquid but can also be gaseous. The type and properties of the fluids, pressures and temperatures as well as the desired operating points in the process are important for the design.

One fluid in the tubular heat exchangers transfers the energy, and this energy is transferred to the other fluid through the pipe wall. Here, it is important that the design be matched to the general conditions, for each fluid has its specific properties.

The advantage of tubular heat exchangers over plate heat exchangers is their higher pressure resistance and sturdier type of design. The disadvantage is a somewhat worse heat transfer as the larger design provides the same performance.

G H I J B E C D F
Individual Advice Download Info
 
Fluids

For example, the following fluids are cooled and/or heated by tubular heat exchangers:

I. Water

  • Drinking water
  • Circulating and/or heating water
  • Softened water, observe the maximally admissible chloride content
  • Ultra-pure water; here, a low-pocket or pocket-free design with a defined surface quality is useful in most cases.
  • Fully desalted water

II. Oil

  • Heavy oil, not pumpable in a cold condition
  • Hydraulics oil
  • Lubricating oil
  • Insulating oil
  • Heat transfer oil
  • Fuel oil, diesel

III. Gases

  • Air
  • Natural gas
  • Flue gas
  • Nitrogen
  • Steam as a heating fluid or for the generation of steam
Materials

The fluids involved and their temperatures mainly define the material which can be used for the wetted surface or surfaces involved in the heat transfer. Otherwise, corrosion may quickly result in a failure of the flow-type heater, for example.

Materials of the wetted components:

  • Carbon steel
  • Corrosion-resistant stainless steel
  • Heat-resistant stainless steel
  • Titanium, Hastelloy, special materials
  • Brass
Insulation

The tubular heat exchangers can be delivered without insulation (for a customer-provided insulation) or with insulation. The insulation can be designed as follows:

I. Insulation material

  • Mineral wool with a galvanized or aluminium-coated metal jacket
  • Diffusion-tight or gas-tight insulation
  • Insulation for indoor or outdoor installation
Fluid connections

We are prepared to agree with you on the type and position of the fluid connections.. The following connections are available:

I. Fluid connections

  • Standard flanges (DIN, ASME, SAE etc.)
  • Female or male thread connections
  • Clamp flanges
  • Sterile flanges
  • Dairy-type pipe connections
Similar products

The following products may also be of interest to you:

Let us talk about it!

Give us a ring!
After all, we do not sell
nails.

E-Mail info@heatsystems.de
Phone: 02265 99 70-0
Fax: 02265 99 70-70

News

ISO 9001:2015

heatsystems has just passed the audit for the new ISO 9001:2015

More Info

blocked filetypes in mails

potentially dangerous
filetypes are blocked

More Info

News

Events

PRC Europe 2017

heatsystems exhibits at the PRC europe in Haburg.

From May 22nd to 23rd 2017.

More Info

Powtech 2017

heatsystems exhibits at Powtech 2017.
September 26th to 28st 2017

More Info

Events

Heatpedia

What to do, if?

Help; the heater does not work as it should!
We stand by you with advice and assistance

Learn more

What is needed?

A heater alone is not everything.
More is needed!

Learn more

Tank heaters

The tank heaters are designed for efficiently heating liquid fluids. The design is based on the general conditions such as the type and properties of the respective fluid and temperature as well as the desired operating points in the process.

Tank heaters directly heat fluids. To this effect, electrical energy in the heating rods is converted to thermal energy. The thermal energy is then transferred from the heating rods to the fluid. Here, it is important that the design be matched to the general conditions, for each fluid has its specific properties.

G H I J B E C D F
Individual Advice Download Info
 
Fluids

For example, these fluids are heated with electrical tank heaters:

I. Water

  • Drinking water, max. surface load depending on the water hardness 4 – 6 W/cm²
  • Circulating and/or heating water, max. surface load approx. 10 W/cm²
  • Softened water, observe the maximally admissible chloride content, max. surface load approx. 10 W/cm²
  • Fully desalted water; here, non-ferrous heavy metals should not be used, maximum surface load approx. 10 W/cm²

II. Oil

  • Heavy oil, not pumpable in a cold condition, maximum surface load between 1 and 2 W/cm² depending on the quality
  • Hydraulics oil, maximum surface load approx. 0.6 – 1.2 W/cm²
  • Lubricating oil, steam turbine oil, max. surface load approx. 1 W/cm²
  • Fuel oil, diesel, heating to max. 40 °C, max. surface load approx. 4 W/cm²

 

Materials

The fluid to be heated and the application temperature mainly define the materials which can be used for the unheated and/or heated surfaces. Otherwise, corrosion may quickly result in a failure of the tank heater, for example.

Materials of the wetted and unheated components

  • Carbon steel
  • Corrosion-resistant stainless steel
  • Heat-resistant stainless steel
  • Titanium, Hastelloy, special materials
  • Brass

Materials of the heating surface:

  • Carbon steel
  • Corrosion-resistant stainless steel
  • Heat-resistant stainless steel
  • Titanium, Hastelloy, special materials

Supply and/or supply protection

  • Cables
  • Riser with internal cable
Heating elements

Normally, sturdy heating elements are used for tank heaters.

I. Heating elements

  • Tubular heaters 16 mm
  • Cartridge-type heaters, diameter 16, 18 or 25 mm
Control equipment

Electrical tank heaters can both be equipped with a built-in control system (for low power) or an external switchgear cabinet or for load switching by customer-provided switchgear and control gear. The electrical heating power can be divided into one or several heating stages. This division can individually be adjusted to match the control equipment.

I. Controllers

  • Control. (-> ON-OFF control switches off the heater if the temperature is exceeded, and switches it on again when the temperature falls below its lowest value. Thus, the temperature will always oscillate around the setpoint. The algorithm of the PID controller will optimally compensate the control fluctuations.)

  • Load switching by contactors or wear-free semiconductors (thyristors). (-> contactors are wearing parts and must be replaced after approx. 100,000 make/break operations; thyristors switch quickly and without any wear but generate more heat losses than contactors.)

  • Electromechanical control.
    Thermostats installed in the electrical flow-type heater are price-efficient controllers whose accuracy is sufficient for many applications.

II. Sensors

  • Thermal protectors and limiters as capillary thermostats (as a safety design as well).
  • Temperature sensors for the fluid and heating rod temperature.
Fluid connections

Tank heaters with low power can be designed with a cable connection. The cable is then sealed against the tank by a screwed cable gland in most cases.

If the tank heater is equipped with a riser or a protective hose including cable connection, the mechanical performance of the installation or sealing of the tank must be agreed with us.

Optionally, the tank heaters can be equipped with a suction line. The following connections are available:

I. Fluid connections

  • Standard flanges (DIN, ASME, SAE etc.)
  • Female or male thread connections
Design models

The following design models are available for equipping the tank heater:

I. Design models

  • Riser for removing the fluid
  • Switchgear cabinet for wall or floor mounting
  • Steel sheet connection housing, powder-coated or stainless steel
  • Electronic or electromechanical control
  • Communication with higher-level control system by floating contacts, standardized signal or bus
Further information

Refer to heatpedia for further information on tank heaters:

I. Calculation programs

II. Information text

Let us talk about it!

Give us a ring!
After all, we do not sell
nails.

E-Mail info@heatsystems.de
Phone: 02265 99 70-0
Fax: 02265 99 70-70

News

ISO 9001:2015

heatsystems has just passed the audit for the new ISO 9001:2015

More Info

blocked filetypes in mails

potentially dangerous
filetypes are blocked

More Info

News

Events

PRC Europe 2017

heatsystems exhibits at the PRC europe in Haburg.

From May 22nd to 23rd 2017.

More Info

Powtech 2017

heatsystems exhibits at Powtech 2017.
September 26th to 28st 2017

More Info

Events

Heatpedia

What to do, if?

Help; the heater does not work as it should!
We stand by you with advice and assistance

Learn more

What is needed?

A heater alone is not everything.
More is needed!

Learn more

Screw-in heaters

Screw-in heaters are designed for efficiently heating liquid or gaseous fluids which are flowing or stagnant. The design is based on the general conditions such as the type and properties of the respective fluid, pressure and temperature as well as the desired operating points in the process.

Screw-in heaters directly heat fluids, converting electrical energy in the heating rods to thermal energy. The thermal energy is then transferred from the heating rods to the fluid. Here, it is important that the design be matched to the general conditions, for each fluid has its specific properties.

G H I J B E C D F
 

also available in explosion-proof design

 
Individual Advice Download Info
 
Fluids

For example, these fluids are heated by the screw-in heaters:

I. Water

  • Drinking water, max. surface load depending on the water hardness 4 – 6 W/cm²
  • Circulating and/or heating water, max. surface load approx. 10 W/cm²
  • Softened water, observe the maximally admissible chloride content, max. surface load approx. 10 W/cm²
  • Fully desalted water; here, non-ferrous metals and soldered models should not be used, max. surface load approx. 10 W/cm²

II. Oil

  • Heavy oil, not pumpable in a cold condition, maximum surface load between 1 and 2 W/cm² depending on the quality
  • Hydraulics oil, maximum surface load approx. 0.6 – 1.2 W/cm²
  • Lubricating oil, steam turbine oil, max. surface load approx. 1 W/cm²
  • Insulating oil, maximum surface load approx. 0.3 – 0.6 W/cm²Insulating oil, maximum surface load approx. 0.3 – 0.6 W/cm²
  • Heat transfer oil, film temperature calculation acc. to DIN 4754 required, maximum surface load approx. 10 W/cm²depending on the flow velocity and oil
  • Fuel oil, diesel, heating to max. 40 °C, max. surface load approx. 4 W/cm²

III. Gases

  • Air
  • Natural gas
  • Flue gas
  • Nitrogen
  • Steam for overheating
Materials

The fluid to be heated and the application temperature mainly define the materials which can be used for the unheated and/or heated surfaces. Otherwise, corrosion may quickly result in a failure of the flow-type heater, for example.

Materials of the wetted and unheated components

  • Carbon steel
  • Corrosion-resistant stainless steel
  • Heat-resistant stainless steel
  • Titanium, Hastelloy, special materials
  • Brass

Materials of the heating surface:

  • Carbon steel
  • Corrosion-resistant stainless steel
  • Heat-resistant stainless steel
  • Titanium, Hastelloy, special materials
Heating elements

Miscellaneous heating elements can be used for screw-in heaters. Depending on the application, they will be selected by us.

I. Heating elements

  • Tubular heaters, diameter 8.5 or 16 mm
  • Oval tube heaters, dimensions 16 x 6 mm
  • Cartridge-type heaters, diameter 16, 18 or 25 mm
  • Exchangeable heating elements, including a protective tube, diameter 25, 42 or 65 mm
Control equipment

Screw-in heaters can both be equipped with a built-in control system (for low power) or an external switchgear cabinet or for load switching by customer-provided switchgear and control gear. The electrical heating power can be divided into one or several heating stages. This division can individually be adjusted to match the control equipment.

I. Controllers

  • Electronic ON-OFF control or PID control. (-> ON-OFF control switches off the heater if the temperature is exceeded, and switches it on again when the temperature falls below its lowest value. Thus, the temperature will always oscillate around the setpoint. The algorithm of the PID controller will optimally compensate the control fluctuations.)

  • Load switching by contactors or wear-free semiconductors (thyristors). (-> contactors are wearing parts and must be replaced after approx. 100,000 make/break operations; thyristors switch quickly and without any wear but generate more heat losses than contactors.)

  • Electromechanical control.
  • Thermostats or controller- limiter combinations built in the screw-in heaters provide a price-control with an accuracy sufficient for many applications.

II. Sensors

  • Thermal protectors and limiters as capillary thermostats (as a safety design as well).
  • Temperature sensors for the fluid and heating rod temperature.
  • Overheating protection for the heating surface
Switching devices

The switching devices as required for the operation of the screw-in heater can optimally be matched to the process and the heating element; they can be procured from heatsystems.

I. Switching devices

  • Flow-monitoring device
  • Low-water level protection
  • Min. and max. pressure limiter
  • Thermometer for indicating the temperature on site
Fluid connections

We are prepared to agree with you on the type and design of the screw-in thread.. The following connections are available:

I. Threaded connections

  • Female or male thread connections
  • Cylindrical or conical design
Design models

The following designs are available for the electrical equipment and control of the screw-in heater:

I. Design models

  • Indoor or outdoor installation
  • Hazardous area (zone 1 or 2, 21 or 22)
  • Non-harzardous area
  • Type of protection IP54 or better
  • Switchgear cabinet for wall or floor mounting
  • Connection housing of plastic, aluminium, steel sheet, powder-coated or stainless steel
  • Electronic or electromechanical control
  • Communication with higher-level control system by floating contacts, standardized signal or bus
Similar products

The following products may also be of interest to you:

Let us talk about it!

Give us a ring!
After all, we do not sell
nails.

E-Mail info@heatsystems.de
Phone: 02265 99 70-0
Fax: 02265 99 70-70

News

ISO 9001:2015

heatsystems has just passed the audit for the new ISO 9001:2015

More Info

blocked filetypes in mails

potentially dangerous
filetypes are blocked

More Info

News

Events

PRC Europe 2017

heatsystems exhibits at the PRC europe in Haburg.

From May 22nd to 23rd 2017.

More Info

Powtech 2017

heatsystems exhibits at Powtech 2017.
September 26th to 28st 2017

More Info

Events

Heatpedia

What to do, if?

Help; the heater does not work as it should!
We stand by you with advice and assistance

Learn more

What is needed?

A heater alone is not everything.
More is needed!

Learn more

Channel-type air heaters

Channel-type air heaters are designed for efficiently heating of flowing gaseous fluids, air in most cases. The design is based on the general conditions such as the type and properties of the respective fluid, pressure and temperature as well as the desired operating points in the process.

Channel-type air heaters directly heat fluids. To this effect, electrical energy in the heating elements is converted to thermal energy. The thermal energy is then transferred from the heating rods to the fluid. Here, it is important that the design be matched to the general conditions, for each fluid has its specific properties.

G H I J B E C D F
Individual Advice Download Info
 
Applications

Normally, only air is heated in electrical channel-type air heaters. This heated air is used for different purposes:

Heating of air

  • Sealing air
  • Process air
  • Hot air
Materials

The fluid to be heated and the application temperature mainly define the materials which can be used for the unheated and/or heated surfaces.

Materials of the wetted and unheated components

  • Carbon steel
  • Corrosion-resistant stainless steel
  • Heat-resistant stainless steel
  • Titanium, Hastelloy, special materials
  • Brass

Materials of the heating surface:

  • Carbon steel
  • Corrosion-resistant stainless steel
  • Heat-resistant stainless steel
  • Titanium, Hastelloy, special materials
Heating elements

The design of the individual heating elements is a function of the application. There are faster or slower heating elements, mechanically robust or more filigree designs. Also, a distinction is made between compacted heating elements and heating elements where the internal heating insert can be replaced without the necessity of draining the fluid.

I. Heating elements

  • Tubular heaters, diameter 8.5 or 16 mm
  • Cartridge-type heaters, diameter 16, 18 or 25 mm
Control equipment

Channel-type air heaters can both be equipped with a built-in control system (for low power) or an external switchgear cabinet or for load switching by customer-provided switchgear and control gear. The electrical heating power can be divided into one or several heating stages. This division can individually be adjusted to match the control equipment.

I. Controllers

  • Electronic ON-OFF control or PID control. (-> ON-OFF control switches off the heater if the temperature is exceeded, and switches it on again when the temperature falls below its lowest value. Thus, the temperature will always oscillate around the setpoint. The algorithm of the PID controller will optimally compensate the control fluctuations.)

  • Load switching by contactors or wear-free semiconductors (thyristors). (-> contactors are wearing parts and must be replaced after approx. 100,000 make/break operations; thyristors switch quickly and without any wear but generate more heat losses than contactors.)

  • Electromechanical control.
  • Thermostats installed in the electrical flow-type heater are price-efficient controllers whose accuracy is sufficient for many applications.

II. Sensors

  • Thermal protectors and limiters as capillary thermostats (as a safety design as well).
  • Temperature sensors for the fluid and heating rod temperature.
  • Overheating protection for the heater or electrical terminal compartment.
Switching devices

The switching devices as required for the operation of the flow-type heater can optimally be matched to the process and the heating element; they can be ordered from heatsystems.

Also, the communication of the switching devices with the higher-level control system will of course be matched to the requirements exactly.

 

I. Switching devices

  • Flow-monitoring devices
  • Thermometer for indicating the temperature on site
Insulation

The channel-type air heaters can be delivered without insulation (for a customer-provided insulation) or with insulation. The insulation can be designed as follows:

I. Insulation material

  • Mineral wool with a galvanized or aluminium-coated metal jacket
  • Diffusion-tight or gas-tight insulation
  • Insulation for indoor or outdoor installation
Fluid connections

We are prepared to agree with you on the type and position of the fluid connections. The following connections are available:

I. Fluid connections

  • Standard flanges (DIN, ASME, SAE etc.)
Similar products

The following products may also be of interest to you:

Let us talk about it!

Give us a ring!
After all, we do not sell
nails.

E-Mail info@heatsystems.de
Phone: 02265 99 70-0
Fax: 02265 99 70-70

News

ISO 9001:2015

heatsystems has just passed the audit for the new ISO 9001:2015

More Info

blocked filetypes in mails

potentially dangerous
filetypes are blocked

More Info

News

Events

PRC Europe 2017

heatsystems exhibits at the PRC europe in Haburg.

From May 22nd to 23rd 2017.

More Info

Powtech 2017

heatsystems exhibits at Powtech 2017.
September 26th to 28st 2017

More Info

Events

Heatpedia

What to do, if?

Help; the heater does not work as it should!
We stand by you with advice and assistance

Learn more

What is needed?

A heater alone is not everything.
More is needed!

Learn more

Mobile flow-type heaters

Electrical flow-type heaters are designed for efficiently heating liquid or gaseous flowing fluids. The design is based on the general conditions such as the type and properties of the respective fluid, pressure and temperature as well as the desired operating points in the process

Electrical flow-type heaters can be designed for mobile operation, on structures similar to hand trucks for smaller powers, on racks for larger powers. Thus, the electrical heater can easily be moved from place to place.

Electrical flow-type heaters directly heat fluids, converting electrical energy in the heating rods to thermal energy. The thermal energy is then transferred from the heating rods to the fluid. Here, it is important that the design be matched to the general conditions, for each fluid has its specific properties.

G H I J B E C D F
 

also available in explosion-proof design

 
Individual Advice Download Info
 
Fluids

For example, these fluids are heated in mobile electrical flow-type heaters:

I. Water

  • Drinking water, e.g. for sanitization, max. surface load 4 – 6 W/cm² depending on the water hardness 4 – 6 W/cm²
  • Circulating and/or heating water, max. surface load approx. 10 W/cm²
  • Softened water, observe the maximally admissible chloride content, max. surface load approx. 10 W/cm²
  • Ultra-pure water; here, a low-pocket or pocket-free design with a defined surface quality is useful in most cases.
  • Fully desalted water; here, non-ferrous heavy metals should not be used, maximum surface load approx. 10 W/cm²

II. Oil

  • Heavy oil, not pumpable in a cold condition, maximum surface load between 1 and 2 W/cm² depending on the quality
  • Hydraulics oil, maximum surface load approx. 0.6 – 1.2 W/cm²
  • Lubricating oil, steam turbine oil, max. surface load approx. 1 W/cm²
  • Insulating oil, maximum surface load approx. 0.3 – 0.6 W/cm²
  • Heat transfer oil, film temperature calculation acc. to DIN 4754 required, maximum surface load approx. 10 W/cm² depending on the flow velocity and oil
  • Fuel oil, diesel, heating to max. 40 °C, max. surface load approx. 4 W/cm²

III. Gases

  • Air
  • Natural gas
  • Flue gas
  • Nitrogen
  • Steam for overheating
Materials

The fluid to be heated and the application temperature mainly define the materials which can be used for the unheated and/or heated surfaces. Otherwise, corrosion may quickly result in a failure of the flow-type heater, for example.

Materials of the wetted and unheated components

  • Carbon steel
  • Corrosion-resistant stainless steel
  • Heat-resistant stainless steel
  • Titanium, Hastelloy, special materials
  • Brass

Materials of the heating surface:

  • Carbon steel
  • Corrosion-resistant stainless steel
  • Heat-resistant stainless steel
  • Titanium, Hastelloy, special materials
Heating elements

The design of the individual heating elements is a function of the application. There are faster or slower heating elements, mechanically robust or more filigree designs. Also, a distinction is made between compacted heating elements and heating elements where the internal heating insert can be replaced without the necessity of draining the fluid.

I. Heating elements

  • Tubular heaters, diameter 8.5 or 16 mm
  • Cartridge-type heaters, diameter 16, 18 or 25 mm
  • Exchangeable heating elements, including a protective tube, diameter 25, 42 or 65 mm
Control equipment

Electrical flow-type heaters can both be equipped with a built-in control system (for low power) or an external switchgear cabinet or for load switching by customer-provided switchgear and control gear. The electrical heating power can be divided into one or several heating stages. This division can individually be adjusted to match the control equipment.

I. Controllers

  • Electronic ON-OFF control or PID control. (-> ON-OFF control switches off the heater if the temperature is exceeded, and switches it on again when the temperature falls below its lowest value. Thus, the temperature will always oscillate around the setpoint. The algorithm of the PID controller will optimally compensate the control fluctuations.)

  • Load switching by contactors or wear-free semiconductors (thyristors). (-> contactors are wearing parts and must be replaced after approx. 100,000 make/break operations; thyristors switch quickly and without any wear but generate more heat losses than contactors.)

  • Electromechanical control.
  • Thermostats installed in the electrical flow-type heater are price-efficient controllers whose accuracy is sufficient for many applications.

II. Sensors

  • Thermal protectors and limiters as capillary thermostats (as a safety design as well).
  • Temperature sensors for the fluid and heating rod temperature.
  • Overheating protection for the heater or electrical terminal compartment.
Switching devices

The switching devices as required for the operation of the flow-type heater can optimally be matched to the process and the heating element; they can be ordered from heatsystems.

Also, the communication of the switching devices with the higher-level control system will of course be matched to the requirements exactly.

 

I. Switching devices

  • Flow-monitoring device
  • Low-water level protection
  • Min. and max. pressure limiter
  • Thermometer for indicating the temperature on site
Insulation

Insulation designs for the mobile electrical flow-type heaters are available as follows:

I. Insulation material

  • Mineral wool with a galvanized or aluminium-coated metal jacket.
  • Diffusion-tight or gas-tight insulation
  • Insulation for indoor or outdoor installation
Fluid connections

We are prepared to agree with you on the type and position of the fluid connections. The following connections are available:

I. Fluid connections

  • Standard flanges (DIN, ASME, SAE etc.)
  • Female or male thread connections
  • Clamp flanges
  • Sterile flanges
  • Dairy-type pipe connections
Design models

The following designs are available for the electrical equipment and control of the flow-type heater:

I. Design models

  • Indoor or outdoor installation
  • Hazardous area (zone 1 or 2, 21 or 22)
  • Non-harzardous area
  • Type of protection IP54 or better
  • Switchgear cabinet for wall or floor mounting
  • Steel sheet connection housing, powder-coated or stainless steel
  • Electronic or electromechanical control
  • Communication with higher-level control system by floating contacts, standardized signal or bus
Similar products

The following products may also be of interest to you:

Let us talk about it!

Give us a ring!
After all, we do not sell
nails.

E-Mail info@heatsystems.de
Phone: 02265 99 70-0
Fax: 02265 99 70-70

News

ISO 9001:2015

heatsystems has just passed the audit for the new ISO 9001:2015

More Info

blocked filetypes in mails

potentially dangerous
filetypes are blocked

More Info

News

Events

PRC Europe 2017

heatsystems exhibits at the PRC europe in Haburg.

From May 22nd to 23rd 2017.

More Info

Powtech 2017

heatsystems exhibits at Powtech 2017.
September 26th to 28st 2017

More Info

Events

Heatpedia

What to do, if?

Help; the heater does not work as it should!
We stand by you with advice and assistance

Learn more

What is needed?

A heater alone is not everything.
More is needed!

Learn more

Plate heat exchangers

Plate heat exchangers transfer the thermal energy of a fluid to another one. Therefore, their name is plate heat exchanger. The fluids involved are mainly liquid but can also be gaseous. The type and properties of the fluids, pressures and temperatures as well as the desired operating points in the process are important for the design.

One fluid in the plate heat exchangers transfers the energy, and this energy is transferred to the other fluid through a metallic plate. Here, it is important that the design be matched to the general conditions, for each fluid has its specific properties.

The advantage of plate heat exchangers over tubular heat exchangers is the smaller design at the same thermal power and a better possibility of cleaning (in case of screwed plate heat exchangers); the lower pressure stability is a disadvantage.

G H I J B E C D F
Individual Advice Download Info
 
Fluids

For example, these fluids are heated in electrical flow-type heaters:

I. Water

  • Drinking water, max. surface load depending on the water hardness 4 – 6 W/cm²
  • Circulating and/or heating water, max. surface load approx. 10 W/cm²
  • Softened water; observe the maximally admissible chloride content, max. surface load approx. 19.0 W/cm²
  • Ultra-pure water; here, a low-pocket or pocket-free design with a defined surface quality is useful in most cases.
  • Fully desalted water; here, non-ferrous heavy metals should not be used, maximum surface load approx. 10 W/cm²

II. Oil

  • Heavy oil, not pumpable in a cold condition, maximum surface load between 1 and 2 W/cm² depending on the quality
  • Hydraulics oil, maximum surface load approx. 0.6 – 1.2 W/cm²
  • Lubricating oil, steam turbine oil, max. surface load approx. 1 W/cm²
  • Insulating oil, maximum surface load approx. 0.3 – 0.6 W/cm²
  • Heat transfer oil, film temperature calculation acc. to DIN 4754 required, maximum surface load approx. 10 W/cm²depending on the flow velocity and oil
  • Fuel oil, diesel, heating to max. 40 °C, max. surface load approx. 4 W/cm²

III. Gases

  • Air
  • Natural gas
  • Flue gas
  • Nitrogen
  • Steam for overheating
Materials

The fluid to be heated and the application temperature mainly define the materials which can be used for the unheated and/or heated surfaces. Otherwise, corrosion may quickly result in a failure of the flow-type heater, for example.

Materials of the wetted and unheated components:

  • Carbon steel
  • Corrosion-resistant stainless steel
  • Heat-resistant stainless steel
  • Titanium, Hastelloy, special materials
  • Brass

Materials of the heating surface:

  • Carbon steel
  • Corrosion-resistant stainless steel
  • Heat-resistant stainless steel
  • Titanium, Hastelloy, special materials
Heating elements

Miscellaneous heating elements can be used for electrical flow-type heaters. Depending on the application, they will be selected by us.

I. Heating elements

  • Tubular heaters, diameter 8.5 or 16 mm
  • Cartridge-type heaters, diameter 16, 18 or 25 mm
  • Exchangeable heating elements, including a protective tube, diameter 25, 42 or 65 mm
Control equipment

Electrical flow-type heaters can both be equipped with a built-in control system (for low power) or an external switchgear cabinet or for load switching by customer-provided switchgear and control gear. The electrical heating power can be divided into one or several heating stages. This division can individually be adjusted to match the control equipment.

I. Controllers

  • Electronic ON-OFF control or PID control. (-> ON-OFF control switches off the heater if the temperature is exceeded, and switches it on again when the temperature falls below its lowest value. Thus, the temperature will always oscillate around the setpoint. The algorithm of the PID controller will optimally compensate the control fluctuations.)

  • Load switching by contactors or wear-free semiconductors (thyristors). (-> contactors are wearing parts and must be replaced after approx. 100,000 make/break operations; thyristors switch quickly and without any wear but generate more heat losses than contactors.)

  • Electromechanical control.
  • Thermostats installed in the electrical flow-type heater are price-efficient controllers whose accuracy is sufficient for many applications.

II. Sensors

  • Thermal protectors and limiters as capillary thermostats (as a safety design as well).
  • Temperature sensors for the fluid and heating rod temperature.
  • Overheating protection for the heater or electrical terminal compartment.
Switching devices

The switching devices as required for the operation of the flow-type heater can optimally be matched to the process and the heating element; they can be ordered from heatsystems.

I. Switching devices

  • Flow-monitoring device
  • Low-water level protection
  • Min. and max. pressure limiter
  • Thermometer for indicating the temperature on site
Insulation

The electrical flow-type heaters can be delivered without insulation (for a customer-provided insulation) or with insulation. The insulation can be designed as follows:

I. Insulation material

  • Mineral wool with a galvanized or aluminium-coated metal jacket
  • Diffusion-tight or gas-tight insulation
  • Insulation for indoor or outdoor installation
Fluid connections

We are prepared to agree with you on the type and position of the fluid connections.. The following connections are available:

I. Fluid connections

  • Standard flanges (DIN, ASME, SAE etc.)
  • Female or male thread connections
  • Clamp flanges
  • Sterile flanges
  • Dairy-type pipe connections
Design models

The following designs are available for the electrical equipment and control of the flow-type heater:

I. Design models

  • Indoor or outdoor installation
  • Hazardous area (zone 1 or 2, 21 or 22)
  • Non-harzardous area
  • Type of protection IP54 or better
  • Switchgear cabinet for wall or floor mounting
  • Steel sheet connection housing, powder-coated or stainless steel
  • Electronic or electromechanical control
  • Communication with higher-level control system by floating contacts, standardized signal or bus

Let us talk about it!

Give us a ring!
After all, we do not sell
nails.

E-Mail info@heatsystems.de
Phone: 02265 99 70-0
Fax: 02265 99 70-70

News

ISO 9001:2015

heatsystems has just passed the audit for the new ISO 9001:2015

More Info

blocked filetypes in mails

potentially dangerous
filetypes are blocked

More Info

News

Events

PRC Europe 2017

heatsystems exhibits at the PRC europe in Haburg.

From May 22nd to 23rd 2017.

More Info

Powtech 2017

heatsystems exhibits at Powtech 2017.
September 26th to 28st 2017

More Info

Events

Heatpedia

What to do, if?

Help; the heater does not work as it should!
We stand by you with advice and assistance

Learn more

What is needed?

A heater alone is not everything.
More is needed!

Learn more

Inline heaters

Inline heaters are a special variant of the electrical flow-type heaters. They are designed for efficiently heating liquid or gaseous flowing fluids. The absolutely pocket-free design of the inline heaters is a special feature of them. There are no obstructions for the fluid. Thus, a deposit of retained particles is not possible. The heated surface can be designed such that nevertheless a turbulent flow is ensured. The design is based on the general conditions such as the type and properties of the respective fluid, pressure and temperature as well as the desired operating points in the process.

Inline-type air heaters directly heat fluids. To this effect, electrical energy in the heating elements is converted to thermal energy. The thermal energy is then transferred from the heating elements to the fluid. Here, it is important that the design be matched to the general conditions, for each fluid has its specific properties.

G H I J B E C D F
Individual Advice Download Info
 
Fluids

For example, these fluids are heated in electrical inline heaters:

I. Water

  • Drinking water, max. surface load depending on the water hardness 4 – 6 W/cm²
  • Circulating and/or heating water, max. surface load approx. 10 W/cm²
  • Softened water, observe the maximally admissible chloride content, max. surface load approx. 10 W/cm²
  • Ultra-pure water, e.g. purified water (PW), highly purified water (HPW) or WFI

II. Gases

  • Air, sterilized air as well
Materials

The fluid to be heated and the application temperature mainly define the materials and the surface qualities which can be used for the unheated and/or heated surfaces. Otherwise, corrosion may quickly result in a failure of the flow-type heater, for example.

Materials of the wetted components:

  • Corrosion-resistant stainless steel
  • Heat-resistant stainless steel
  • Alloys on nickel basis , e.g. Incolloy, Hastelloy
  • Titanium, special materials
Control equipment

Inline heaters are usually selected by an external switchgear cabinet. The electrical heating power can be divided into one or several heating stages. This division can individually be adjusted to match the control equipment.

I. Controllers

  • Electronic ON-OFF control or PID control. (-> ON-OFF control switches off the heater if the temperature is exceeded, and switches it on again when the temperature falls below its lowest value. Thus, the temperature will always oscillate around the setpoint. The algorithm of the PID controller will optimally compensate the control fluctuations.)

  • Load switching by contactors or wear-free semiconductors (thyristors). (-> contactors are wearing parts and must be replaced after approx. 100,000 make/break operations; thyristors switch quickly and without any wear but generate more heat losses than contactors.)

II. Sensors

  • Thermal protectors and limiters (as a safety design as well).
  • Temperature sensors for the fluid and heating element temperature.
  • Overheating protection
Insulation

Inline heaters are normally delivered with an insulation. The following insulation designs are available:

I. Insulation material

  • Mineral wool with a stainless steel jacket
  • Gas-tight insulation
Fluid connections

We are prepared to agree with you on the type and position of the fluid connections. The following connections are available:

I. Fluid connections

  • Standard flanges (DIN, ASME, SAE etc.)
  • Female or male thread connections
  • Clamp flanges (DIN32676)
  • Sterile flanges (DIN11864)
  • Dairy-type pipe connections
Design models

The following designs are available for the electrical equipment and control of the flow-type heater:

I. Design models

  • Indoor or outdoor installation
  • Hazardous area (zone 1 or 2, 21 or 22)
  • Non-harzardous area
  • Type of protection IP54 or better
  • Switchgear cabinet for wall or floor mounting
  • Steel sheet connection housing, powder-coated or stainless steel
  • Electronic or electromechanical control
  • Communication with higher-level control system by floating contacts, standardized signal or bus
Similar products

The following products may also be of interest to you:

Let us talk about it!

Give us a ring!
After all, we do not sell
nails.

E-Mail info@heatsystems.de
Phone: 02265 99 70-0
Fax: 02265 99 70-70

News

ISO 9001:2015

heatsystems has just passed the audit for the new ISO 9001:2015

More Info

blocked filetypes in mails

potentially dangerous
filetypes are blocked

More Info

News

Events

PRC Europe 2017

heatsystems exhibits at the PRC europe in Haburg.

From May 22nd to 23rd 2017.

More Info

Powtech 2017

heatsystems exhibits at Powtech 2017.
September 26th to 28st 2017

More Info

Events

Heatpedia

What to do, if?

Help; the heater does not work as it should!
We stand by you with advice and assistance

Learn more

What is needed?

A heater alone is not everything.
More is needed!

Learn more

Heavy-oil preheaters

Heavy-oil preheaters are a variant of the electrical flow-type heaters.

They are designed for efficiently heating heavy oil to adjust the proper viscosity for the burner. The design is based on the general conditions such as the type and properties of the respective fluid, pressure and temperature as well as the desired operating points in the process.

Electrical heavy-oil heaters directly heat fuel by converting electrical energy in the heating rods to thermal energy. The thermal energy is then transferred from the heating rods to the fluid. Here, it is important that the design be matched to the general conditions, for each fluid has its specific properties.

G H I J B E C D F
 

also available in explosion-proof design

 
Individual Advice Download Info
 
Fluids

Electrical heavy-oil preheaters heat - of course - heavy oil to adjust it to the needed viscosity which is required by the downstream separators or burners. There are different qualities of the heavy oil:

I. Heavy oil

  • Bunker B
  • Bunker C

For reasons of procurement or prices other materials can be burnt partially such as, for example:

II. Other fuels

  • Animal fat
  • Palm oil
  • Waste oil

If these fuels must also be covered, the heavy-oil preheater requires a special design. We are prepared to advise you.

Materials

The fluid to be heated and the application temperature mainly define the materials which can be used for the unheated and/or heated surfaces. Otherwise, corrosion may quickly result in a failure of the flow-type heater, especially if not only heavy oil but also other fuels are heated.

Materials of the wetted and unheated components of the heavy-oil preheaters

  • Carbon steel
  • Corrosion-resistant stainless steel

Materials of the heating surface:

  • Carbon steel
  • Corrosion-resistant stainless steel
Heating elements

The design of the individual heating elements is a function of the application. Normally, we use mechanically sturdy design for heavy-oil preheaters. Also, a distinction is made between compacted heating elements and heating elements where the internal heating insert can be replaced without the necessity of draining the fluid.

I. Heating elements

  • Tubular heaters, diameter 16 mm
  • Cartridge-type heaters, diameter 16, 18 or 25 mm
  • Exchangeable heating elements, including a protective tube, diameter 25, 42 or 65 mm
Control equipment

Electrical flow-type heaters can both be equipped with a built-in control system (for low power) or an external switchgear cabinet or for load switching by customer-provided switchgear and control gear. The electrical heating power can be divided into one or several heating stages. This division can individually be adjusted to match the control equipment.

I. Controllers

  • Electronic ON-OFF control or PID control. (-> ON-OFF control switches off the heater if the temperature is exceeded, and switches it on again when the temperature falls below its lowest value. Thus, the temperature will always oscillate around the setpoint. The algorithm of the PID controller will optimally compensate the control fluctuations.)

  • Load switching by contactors or wear-free semiconductors (thyristors). (-> contactors are wearing parts and must be replaced after approx. 100,000 make/break operations; thyristors switch quickly and without any wear but generate more heat losses than contactors.)

  • Electromechanical control.
  • Thermostats installed in the electrical flow-type heater are price-efficient controllers whose accuracy is sufficient for many applications.

II. Sensors

  • Thermal protectors and limiters as capillary thermostats (as a safety design as well).
  • Temperature sensors for the fluid and heating rod temperature.
  • Overheating protection for the heater or electrical terminal compartment.
Thawing heaters

Heavy oil cannot be pumped in a cold condition To ensure a proper start of the plant, the following possibilities can be used:

  • Start-up arrangement Only useful, if an infinitely variable selection (thyristor controller) is available.
  • Rinsing with fuel oil (EL) Must be provided on site. In this case, the heater is switched off.
  • Thawing heater in the heater This additional heater keeps the heater to temperature and must be switched together with the pipe tracing of the feeding or discharging lines.
Insulation

The electrical flow-type heaters can be delivered without insulation (for a customer-provided insulation) or with insulation. The insulation can be designed as follows:

I. Insulation material

  • Mineral wool with a galvanized or aluminium-coated metal jacket.
  • Diffusion-tight or gas-tight insulation
  • Insulation for indoor or outdoor installation
Fluid connections

We are prepared to agree with you on the type and position of the fluid connections. The following connections are available:

I. Fluid connections

  • Standard flanges (DIN, ASME, SAE etc.)
  • Female or male thread connections
Similar products

The following products may also be of interest to you:

Let us talk about it!

Give us a ring!
After all, we do not sell
nails.

E-Mail info@heatsystems.de
Phone: 02265 99 70-0
Fax: 02265 99 70-70

News

ISO 9001:2015

heatsystems has just passed the audit for the new ISO 9001:2015

More Info

blocked filetypes in mails

potentially dangerous
filetypes are blocked

More Info

News

Events

PRC Europe 2017

heatsystems exhibits at the PRC europe in Haburg.

From May 22nd to 23rd 2017.

More Info

Powtech 2017

heatsystems exhibits at Powtech 2017.
September 26th to 28st 2017

More Info

Events

Heatpedia

What to do, if?

Help; the heater does not work as it should!
We stand by you with advice and assistance

Learn more

What is needed?

A heater alone is not everything.
More is needed!

Learn more

Vessels

The containers from f heatsystems are matched to the electrical heaters and have been designed to the required pressures and temperatures.

G H I J B E C D F
Individual Advice Download Info
 
Fluids

Normally, water of different quality is stored as a fluid in the containers:

I. Water

  • Drinking water
  • Circulating and/or heating water
  • Softened water
  • Ultra-pure water
  • Fully desalted water

Of course, the containers can also contain other fluids.

Materials

Normally, the containers are produced of the following materials:

Materials of the wetted and unheated components

  • Carbon steel
  • Corrosion-resistant stainless steel

If a heating surface is installed (traditional or electrical) the following materials are used:

Materials of the heating surface:

  • Carbon steel
  • Corrosion-resistant stainless steel
  • Titanium, Hastelloy, special materials
Control equipment

The heating of the containers can both be equipped with a built-in control system (for low power) or an external switchgear cabinet or for load switching by customer-provided switchgear and control gear. The electrical heating power can be divided into one or several heating stages. This division can individually be adjusted to match the control equipment.

I. Controllers

  • Electronic ON-OFF control or PID control. (-> ON-OFF control switches off the heater if the temperature is exceeded, and switches it on again when the temperature falls below its lowest value. Thus, the temperature will always oscillate around the setpoint. The algorithm of the PID controller will optimally compensate the control fluctuations.)

  • Load switching by contactors or wear-free semiconductors (thyristors). (-> contactors are wearing parts and must be replaced after approx. 100,000 make/break operations; thyristors switch quickly and without any wear but generate more heat losses than contactors.)

  • Electromechanical control.
  • Thermostats installed in the electrical flow-type heater are price-efficient controllers whose accuracy is sufficient for many applications.

II. Sensors

  • Thermal protectors and limiters as capillary thermostats (as a safety design as well).
  • Temperature sensors for the fluid and heating rod temperature.
  • Overheating protection for the heater or electrical terminal compartment.
Switching devices

The switching devices as required for the operation of tank heater can optimally be matched to the process and the heating element; they can be ordered from heatsystems.

Also, the communication of the switching devices with the higher-level control system will of course be matched to the requirements exactly.

 

I. Switching devices

  • Flow-monitoring device
  • Low-water level protection
  • Min. and max. pressure limiter
  • Thermometer for indicating the temperature on site
Insulation

The containers can be delivered without insulation (for a customer-provided insulation) or with insulation. The insulation can be designed as follows:

I. Insulation material

  • Mineral wool with a galvanized or aluminium-coated metal jacket.
  • Diffusion-tight or gas-tight insulation
  • Insulation for indoor or outdoor installation
Fluid connections

We are prepared to agree with you on the type and position of the fluid connections. The following connections are available:

I. Fluid connections

  • Standard flanges (DIN, ASME, SAE etc.)
  • Female or male thread connections
  • Clamp flanges
  • Sterile flanges
  • Dairy-type pipe connections

Let us talk about it!

Give us a ring!
After all, we do not sell
nails.

E-Mail info@heatsystems.de
Phone: 02265 99 70-0
Fax: 02265 99 70-70

News

ISO 9001:2015

heatsystems has just passed the audit for the new ISO 9001:2015

More Info

blocked filetypes in mails

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PRC Europe 2017

heatsystems exhibits at the PRC europe in Haburg.

From May 22nd to 23rd 2017.

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Powtech 2017

heatsystems exhibits at Powtech 2017.
September 26th to 28st 2017

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Push-in preheaters

Tank push-in preheaters are mainly designed for heating heavy fuel oil and other liquid fuels directly in the tank.

The tank push-in preheaters are used to heat the fluid in the tank at the tap so that it is not necessary to keep the complete tank volume to temperature. Rather, the tapped heavy oil and the immediate vicinity is heated, minimizing the losses.

heatsystems tank push-in preheaters are available with or without a tap connection. The tap connection design mixes the returning fuel directly at the tap, minimizing the energies required for preheating by this as well. Nevertheless, degassing of the fuel is ensured.

G H I J B E C D F
 

also available in explosion-proof design

 
Individual Advice Download Info
 
Fluids

For example, these fluids are heated in tank push-in preheaters:

I. Fuels

  • Heavy oil, not pumpable in a cold condition, maximum surface load between 1 and 2 W/cm² depending on the quality
  • Fuel oil, diesel, heating to max. 40 °C, max. surface load approx. 4 W/cm²
  • Animal fats require a corrosion-resistant design
  • Used oil requires an explosion-protected design in most cases.
Materials

The fluid to be heated and the application temperature mainly define the materials which can be used for the unheated and/or heated surfaces. Otherwise, corrosion may quickly result in a failure of the electrical flange heater, for example.

Materials of the wetted and unheated components:

  • Carbon steel
  • Corrosion-resistant stainless steel

Materials of the heating surface:

  • Carbon steel
  • Corrosion-resistant stainless steel
Heating elements

Due to the large tank volumes exchangeable heating elements are mainly used for tank push-in preheaters. Thus, a heating element may be exchanged in case of a defect without the necessity of draining the fluid.

I. Heating elements

  • Tubular heaters, diameter 8.5 or 16 mm
  • Cartridge-type heaters, diameter 16, 18 or 25 mm
  • Exchangeable heating elements, including a protective tube, diameter 25, 42 or 65 mm

If other process heat is available (hot water, steam or thermal oil), a part of the heating surface can be designed as heat transfer medium, providing a combined tank push-in preheater and both providing an electrical and a conventional heating surface in a compact space. The electrical heater is only required for starting the plant; after that transfer to another heating medium is made.

Control equipment

Electrical flow-type heaters can both be equipped with a built-in control system (for low power) or an external switchgear cabinet or for load switching by customer-provided switchgear and control gear. The electrical heating power can be divided into one or several heating stages. This division can individually be adjusted to match the control equipment.

I. Controllers

  • Electronic ON-OFF control or PID control. (-> ON-OFF control switches off the heater if the temperature is exceeded, and switches it on again when the temperature falls below its lowest value. Thus, the temperature will always oscillate around the setpoint. The algorithm of the PID controller will optimally compensate the control fluctuations.)

  • Load switching by contactors or wear-free semiconductors (thyristors). (-> contactors are wearing parts and must be replaced after approx. 100,000 make/break operations; thyristors switch quickly and without any wear but generate more heat losses than contactors.)

  • Electromechanical control.
  • Thermostats installed in the electrical flow-type heater are price-efficient controllers whose accuracy is sufficient for many applications.

II. Sensors

  • Thermal protectors and limiters as capillary thermostats (as a safety design as well).
  • Temperature sensors for the fluid and heating rod temperature.
  • Overheating protection for the heater or electrical terminal compartment.
Fluid connections

We are prepared to agree with you on the type and position of the fluid connections. The following connections are available:

I. Fluid connections

  • Standard flanges (DIN, ASME, SAE etc.)
  • Female or male thread connections
  • Clamp flanges
  • Sterile flanges
  • Dairy-type pipe connections
Similar products

The following products may also be of interest to you:

Let us talk about it!

Give us a ring!
After all, we do not sell
nails.

E-Mail info@heatsystems.de
Phone: 02265 99 70-0
Fax: 02265 99 70-70

News

ISO 9001:2015

heatsystems has just passed the audit for the new ISO 9001:2015

More Info

blocked filetypes in mails

potentially dangerous
filetypes are blocked

More Info

News

Events

PRC Europe 2017

heatsystems exhibits at the PRC europe in Haburg.

From May 22nd to 23rd 2017.

More Info

Powtech 2017

heatsystems exhibits at Powtech 2017.
September 26th to 28st 2017

More Info

Events

Heatpedia

What to do, if?

Help; the heater does not work as it should!
We stand by you with advice and assistance

Learn more

What is needed?

A heater alone is not everything.
More is needed!

Learn more

Pharma-type flange heaters

Pharma-type flange heaters are designed for efficiently heating liquid or gaseous fluids which are flowing or stagnant. This special model of an electrical flange heater mainly heats ultra-pure fluids. The design of the pharma-type flange heater has especially been matched to this application. The design can be low-pocket or pocket-free. The design is based on the general conditions such as the type and properties of the respective fluid, pressure and temperature as well as the desired operating points in the process.

Pharma-type flange heaters directly heat fluids, converting electrical energy in the heating rods to thermal energy. The thermal energy is then transferred from the heating rods to the fluid. Here, it is important that the design be matched to the general conditions, for each fluid has its specific properties.

G H I J B E C D F
 

also available in explosion-proof design

 
Individual Advice Download Info
 
Fluids

For example, these fluids are heated in Pharma-type flange heaters:

I. Ultra-pure water

  • Aqua purificata (AP) and/or cleaned or purified water (PW)
  • Water for injection purposes (WFI)
  • Ultra-clean water as feed water for the generation of ultra-pure steam

II. Air

  • Sterilized air

III. Other fluids

  • Hydrogen peroxide
  • CIP solutions
Materials

The fluid to be heated and the application temperature mainly define the materials which can be used for the unheated and/or heated surfaces. Otherwise, corrosion may quickly result in a failure of the electrical flange heater, for example.

Materials of the wetted, heated and unheated components

  • Corrosion-resistant stainless steel
  • Titanium, Hastelloy, special materials

Special designs of the wetted components

  • Surface roughness Ra < 0.8 µm, lower surface roughness as an option (Ra < 0.6µm, Ra < 0.4 µm)
  • Electropolished design
  • Limited delta ferrite content in the basic material and weld
Heating elements

The design of the individual heating elements is a function of the application. There are faster or slower heating elements, mechanically robust or more filigree designs. Also, a distinction is made between compacted heating elements and heating elements where the internal heating insert can be replaced without the necessity of draining the fluid.

I. Heating elements

  • Tubular heaters, diameter 8.5 or 16 mm
  • Cartridge-type heaters, diameter 16, 18 or 25 mm
  • Exchangeable heating elements, including a protective tube, diameter 25, 42 or 65 mm
Control equipment

Electrical flange heaters can both be equipped with a built-in control system (for low power) or an external switchgear cabinet or for load switching by customer-provided switchgear and control gear. The electrical heating power can be divided into one or several heating stages. This division can individually be adjusted to match the control equipment.

I. Controllers

  • Electronic ON-OFF control or PID control.
    (-> ON-OFF control switches off the heater if the temperature is exceeded, and switches it on again when the temperature falls below its lowest value. Thus, the temperature will always oscillate around the setpoint. The algorithm of the PID controller will optimally compensate the control fluctuations.)

  • Load switching by contactors or wear-free semiconductors (thyristors).
    (-> contactors are wearing parts and must be replaced after approx. 100,000 make/break operations; thyristors switch quickly and without any wear but generate more heat losses than contactors.)

  • Electromechanical control.
    Thermostats installed in the electrical flow-type heater are price-efficient controllers whose accuracy is sufficient for many applications.

II. Sensors

  • Thermal protectors and limiters as capillary thermostats (as a safety design as well).
  • Temperature sensors for the fluid and heating rod temperature.
  • Overheating protection for the heater or electrical terminal compartment.
Switching devices

The switching devices as required for the operation of the electrical flange heaters can optimally be matched to the process and the heating element; they can be ordered from heatsystems.

I. Switching devices

  • Flow-monitoring device
  • Low-water level protection
  • Min. and max. pressure limiter
  • Thermometer for indicating the temperature on site
Insulation

Normally, the cooling section of the electrical flange heaters (i.e. the section between the flange plate and the electrical terminal box) must normally not be insulated. If this is required for technical reasons, e.g. at fluid temperatures below the freezing point, we are prepared to design a customized model.

Flange connections

The electrical flange heaters - as the name implies - are flanged to the container or the flow tube. A number of options is available for this flange connection:

I. Flange connections

  • Standard flanges (DIN, ASME, SAE etc.)
  • Clamp flanges (DIN32676)
  • Sterile flanges (DIN 11864)
  • Dairy-type pipe connections
Design models

Available design models for electrical equipment and controlling of the electrical flange heaters are:

I. Design models

  • Indoor or outdoor installation
  • Hazardous area (zone 1 or 2, 21 or 22)
  • Non-harzardous area
  • Type of protection IP54 or better
  • Switchgear cabinet for wall or floor mounting
  • Steel sheet connection housing, powder-coated or stainless steel
  • Electronic or electromechanical control
  • Communication with higher-level control system by floating contacts, standardized signal or bus

Let us talk about it!

Give us a ring!
After all, we do not sell
nails.

E-Mail info@heatsystems.de
Phone: 02265 99 70-0
Fax: 02265 99 70-70

News

ISO 9001:2015

heatsystems has just passed the audit for the new ISO 9001:2015

More Info

blocked filetypes in mails

potentially dangerous
filetypes are blocked

More Info

News

Events

PRC Europe 2017

heatsystems exhibits at the PRC europe in Haburg.

From May 22nd to 23rd 2017.

More Info

Powtech 2017

heatsystems exhibits at Powtech 2017.
September 26th to 28st 2017

More Info

Events

Heatpedia

What to do, if?

Help; the heater does not work as it should!
We stand by you with advice and assistance

Learn more

What is needed?

A heater alone is not everything.
More is needed!

Learn more

pharma-type DTS heat exchangers

Pure fluids have to stay pure. Therefor we produce DTS-heat exchangers for these fluids. DTS ist the abbreviation for double-tube-sheet, meaning a second tube sheet, the mail design criteria. This prevents cross-contamination between the two fluids, e. g. due to a leak in a welcding seam.

If this happens, the according fluid leaks easily visible without the danger of contaminatin the second fluid. The heat exchanger tubes are seamless, so there is no welding seam in contact with one of the fluids.

Of course the materials used, same as the fluid connections and surface qualities in the apropriate performance available.

G H I J B E C D F
Individual Advice Download Info
 
Fluids

These fluids can be heated or cooled in DTS-heat exchangers:

I. heating and cooling fluids

  • steam or pure steam
  • circulating water
  • coolant fluids

II. process fluids

  • ultra pure water
  • water for injections (WFI)
  • productsolution, water-like
  • pure water for steam generation
materials

The fluid to be heated ist one of the major design criteria for the materials to be used. Otherwise corrosion can damage the heat exchanger.

materials of the wetted, unheated parts:

  • stainless steel
  • titanium, hastelloy, special alloys

materials if the heat exchanging surface:

  • stainless steel 316L (1.4404 or 1.4435)
  • titanium, hastelloy, special alloys
Insulation

The DTS heat exchangers can be delivered without insulation (for a customer-provided insulation) or with insulation. The insulation can be designed as follows:

I. insulation material

  • Mineral wool with a galvanized or aluminium-coated metal jacket
  • Diffusion-tight or gas-tight insulation
  • Insulation for indoor or outdoor installation
fluid connections

We are prepared to agree with you on the type and position of the fluid connections. The following connections are available:

I. fluid connections

  • Standard flanges (DIN, ASME, SAE etc.)
  • Female or male thread connections
  • Clamp flanges
  • Sterile flanges
  • Dairy-type pipe connections
Similar products

The following products may also be of interest to you:

Let us talk about it!

Give us a ring!
After all, we do not sell
nails.

E-Mail info@heatsystems.de
Phone: 02265 99 70-0
Fax: 02265 99 70-70

News

ISO 9001:2015

heatsystems has just passed the audit for the new ISO 9001:2015

More Info

blocked filetypes in mails

potentially dangerous
filetypes are blocked

More Info

News

Events

PRC Europe 2017

heatsystems exhibits at the PRC europe in Haburg.

From May 22nd to 23rd 2017.

More Info

Powtech 2017

heatsystems exhibits at Powtech 2017.
September 26th to 28st 2017

More Info

Events

Heatpedia

What to do, if?

Help; the heater does not work as it should!
We stand by you with advice and assistance

Learn more

What is needed?

A heater alone is not everything.
More is needed!

Learn more

Combined heat exchangers

The combined heat exchangers combine the advantages of tubular heat exchangers and electrical heating. If the heating fluid is not yet available (e.g. boiler fired by heavy oil), electrical preheating is effected. The tubular heating surface transfers the thermal energy of one medium to the other. The fluids involved are mainly liquid but can also be gaseous. The type and properties of the fluids, pressures and temperatures as well as the desired operating points in the process are important for the design.

One fluid in the combined heat exchangers dissipates the energy, and this energy is transferred through a pipe wall to the other fluid. Here, it is important that the design be matched to the general conditions, for each fluid has its specific properties.

G H I J B E C D F
Individual Advice Download Info
 
Fluids

Combined heat exchangers are mainly used for heating heavy-oil storage tanks. Of course, they can be used for all fluids which can be used for tubular heat exchangers and electrical flow-type heaters.

I. Water

  • Drinking water, max. surface load depending on the water hardness 4 – 6 W/cm²
  • Circulating and/or heating water, max. surface load approx. 10 W/cm²
  • Softened water; observe the maximally admissible chloride content, max. surface load approx. 19.0 W/cm²
  • Ultra-pure water; here, a low-pocket or pocket-free design with a defined surface quality is useful in most cases.
  • Fully desalted water; here, non-ferrous heavy metals should not be used, maximum surface load approx. 10 W/cm²

II. Oil

  • Heavy oil, not pumpable in a cold condition, maximum surface load between 1 and 2 W/cm² depending on the quality
  • Hydraulics oil, maximum surface load approx. 0.6 – 1.2 W/cm²
  • Lubricating oil, steam turbine oil, max. surface load approx. 1 W/cm²
  • Insulating oil, maximum surface load approx. 0.3 – 0.6 W/cm²
  • Heat transfer oil, film temperature calculation acc. to DIN 4754 required, maximum surface load approx. 10 W/cm² depending on the flow velocity and oil
  • Fuel oil, diesel, heating to max. 40 °C, max. surface load approx. 4 W/cm²

III. Gases

  • Air
  • Natural gas
  • Flue gas
  • Nitrogen
Materials

The fluid to be heated and the application temperature mainly define the materials which can be used for the unheated and/or heated surfaces. Otherwise, corrosion may quickly result in a failure of the combined heat exchanger, for example.

Materials of the wetted and unheated components

  • Carbon steel
  • Corrosion-resistant stainless steel
  • Heat-resistant stainless steel
  • Titanium, Hastelloy, special materials
  • Brass

Materials of the heating surface:

  • Carbon steel
  • Corrosion-resistant stainless steel
  • Heat-resistant stainless steel
  • Titanium, Hastelloy, special materials
Heating elements

Miscellaneous heating elements can be used for combined heat exchangers. Depending on the application, they will be selected by us.

I. Heating elements

  • Tubular heaters, diameter 8.5 or 16 mm
  • Cartridge-type heaters, diameter 16, 18 or 25 mm
  • Exchangeable heating elements, including a protective tube, diameter 25, 42 or 65 mm
Fluid connections

We are prepared to agree with you on the type and position of the fluid connections. The following connections are available:

I. Fluid connections

  • Standard flanges (DIN, ASME, SAE etc.)
  • Female or male thread connections
  • Clamp flanges
  • Sterile flanges
  • Dairy-type pipe connections
Design models

Available design models for electrical equipment and controlling of the combined heat exchanger are:

I. Design models

  • Indoor or outdoor installation
  • Hazardous area (zone 1 or 2, 21 or 22)
  • Non-harzardous area
  • Type of protection IP54 or better
  • Switchgear cabinet for wall or floor mounting
  • Steel sheet connection housing, powder-coated or stainless steel
  • Electronic or electromechanical control
  • Communication with higher-level control system by floating contacts, standardized signal or bus
Similar products

The following products may also be of interest to you:

Let us talk about it!

Give us a ring!
After all, we do not sell
nails.

E-Mail info@heatsystems.de
Phone: 02265 99 70-0
Fax: 02265 99 70-70

News

ISO 9001:2015

heatsystems has just passed the audit for the new ISO 9001:2015

More Info

blocked filetypes in mails

potentially dangerous
filetypes are blocked

More Info

News

Events

PRC Europe 2017

heatsystems exhibits at the PRC europe in Haburg.

From May 22nd to 23rd 2017.

More Info

Powtech 2017

heatsystems exhibits at Powtech 2017.
September 26th to 28st 2017

More Info

Events

Heatpedia

What to do, if?

Help; the heater does not work as it should!
We stand by you with advice and assistance

Learn more

What is needed?

A heater alone is not everything.
More is needed!

Learn more

Heating cartridges

Heating cartridges are mainly used for efficiently heating tools and workpieces. To this effect, the heating cartridges are pushed into a hole in the tool and fixed there. Different diameters and designs make sure that the temperature distribution matches the specifications as well as possible.

G H I J B E C D F
 

also available in explosion-proof design

 
Individual Advice Download Info
 
Diameters

Electrical heating cartridges can be produced for a variety of diameters. The following list shows the most frequent diameters; in addition, many intermediate dimensions are available.

I. Metric dimensions

  • 4 mm
  • 6,5 mm
  • 8 mm
  • 10 mm
  • 12,5 mm
  • 16 mm
  • 20 mm
  • 25 mm
  • 32 mm

II. Imperial dimensions

  • 1/4" (6,35 mm)
  • 3/8" (9,53 mm)
  • 1/2" (12,7 mm)
  • 3/4" (19,05 mm)
  • 1" (25,4 mm)
Materialien

Today, electrical heating cartridges are mainly made of corrosion-resistant stainless steel. Due to the past, heating cartridges with a brass sheath can still be found. The disadvantage of brass is a worse resistance against chlorine (e.g. for the processing of PVC); the lower prospensity to corrosion is an advantage over stainless steel.

Materials for the heating cartridge sheath:

  • Corrosion-resistant stainless steel
  • Brass
  • Heat-resistant stainless steel

If the heating cartridge is not used for heating a workpiece but for liquids, this can be taken into account during the selection of materials in many cases.

Available materials of the heating surface:

  • Carbon steel
  • Corrosion-resistant stainless steel
  • Heat-resistant stainless steel
  • Titanium, Hastelloy, special materials
  • Copper-nickel
Structure of the heating elements

Electrical heating cartridges are mainly distinguished by compacted and non-compacted designs. The higher the loads caused by temperature, but also in case of vibrations etc., the more a compact design will be used. In case of so-called high-capacity heating cartridges the heating coil is as close as possible to the bottom side of the surface for obtaining a uniform temperature distribution and a high load capacity.

I. Heating element design

  • Normal cartridge: Sheath of brass, steel or stainless steel, surface load up to 6 W/cm², price-efficient
  • Compacted heating cartridge: Sheath of stainless steel, surface loads of up to 12 W/cm² possible
  • High-capacity heating cartridge: Sheath of stainless steel, surface loads above12 W/cm² possible
Control equipment

Wherever heating is required, control is also necessary in almost all cases. We are of course prepared to deliver the corresponding controller for your heating cartridges. There are different variants of control which can be selected according to the desired quality.

I. Controllers

  • Electronic ON-OFF control or PID control. (-> ON-OFF control switches off the heater if the temperature is exceeded, and switches it on again when the temperature falls below its lowest value. Thus, the temperature will always oscillate around the setpoint. The algorithm of the PID controller will optimally compensate the control fluctuations.)

  • Load switching by contactors or wear-free semiconductors (thyristors). (-> contactors are wearing parts and must be replaced after approx. 100,000 make/break operations; thyristors switch quickly and without any wear but generate more heat losses than contactors.)

  • Electromechanical control. Thermostats installed on the tool are price-efficient controllers whose accuracy is sufficient for many applications.

II. Sensors

  • Thermal protectors and limiters as capillary thermostats (as a safety design as well).
  • Temperature sensors for tool or heating cartridge temperatures
Electrical connections

A variety of designs is available for electrical heating cartridges. We are prepared to agree with you on the variant suitable for your application, considering factors such as temperature, mechanical load and environmental influences.

I. Electrical connections

  • Glass-silk-insulated nickel wire for temperature of up to 250°C
  • Teflon-insulated nickel wire for temperatures of up to 220°C and moisture-proof design
  • Feeder protection of a glass-silk hollow tube, metal mesh or corrugated metal hose, gas-tight available as well.

II. Mechanical designs

  • Fastening strip
  • Knockout spigot
  • Fastening flange
  • Screw-in thread, metric or Imperial
  • Angle block or pipe bend
Lengths

The heating cartridges can be produced in lengths from approx.. 30 mm up to 3000 mm. Subsequent shortening of a heating cartridge is unfortunately not possible. Therefore, the heating cartridge must be produced to its proper length.

Different heating zones (with different surface loads) can be implemented for the heated length. Depending on the diameter of the heating cartridge, these heating zones can also be selected individually. Thus, an exact temperature control is possible over the length of the heating cartridge.

Let us talk about it!

Give us a ring!
After all, we do not sell
nails.

E-Mail info@heatsystems.de
Phone: 02265 99 70-0
Fax: 02265 99 70-70

News

ISO 9001:2015

heatsystems has just passed the audit for the new ISO 9001:2015

More Info

blocked filetypes in mails

potentially dangerous
filetypes are blocked

More Info

News

Events

PRC Europe 2017

heatsystems exhibits at the PRC europe in Haburg.

From May 22nd to 23rd 2017.

More Info

Powtech 2017

heatsystems exhibits at Powtech 2017.
September 26th to 28st 2017

More Info

Events

Heatpedia

What to do, if?

Help; the heater does not work as it should!
We stand by you with advice and assistance

Learn more

What is needed?

A heater alone is not everything.
More is needed!

Learn more

Coil heaters

Coil heaters are mainly used for efficiently heating cylindrical tools or workpieces. To this effect, coil heaters are fixed to the cylindric sheath surface of the tool. Different diameters and designs make sure that the temperature distribution matches the specifications as well as possible.

G H I J B E C D F
Individual Advice Download Info
 
Diameters

Electrical heating cartridges can be produced for a variety of diameters. The following list shows the most frequent diameters; in addition, many intermediate dimensions are available.

I. Metric dimensions

  • 4 mm
  • 6,5 mm
  • 8 mm
  • 10 mm
  • 12,5 mm
  • 16 mm
  • 20 mm
  • 25 mm
  • 32 mm

II. Imperial dimensions

  • 1/4" (6,35 mm)
  • 3/8" (9,53 mm)
  • 1/2" (12,7 mm)
  • 3/4" (19,05 mm)
  • 1" (25,4 mm)
Materials

Today, electrical heating cartridges are mainly made of corrosion-resistant stainless steel. Due to the past, heating cartridges with a brass sheath can still be found. The disadvantage of brass is a worse resistance against chlorine (e.g. for the processing of PVC); the lower prospensity to corrosion is an advantage over stainless steel.

Materials for the heating cartridge sheath

  • Corrosion-resistant stainless steel
  • Brass
  • Heat-resistant stainless steel

If the heating cartridge is not used for heating a workpiece but for liquids, this can be taken into account during the selection of materials in many cases.

Available materials of the heating surface:

  • Carbon steel
  • Corrosion-resistant stainless steel
  • Heat-resistant stainless steel
  • Titanium, Hastelloy, special materials
  • Copper-nickel
Structure of the heating elements

Electrical heating cartridges are mainly distinguished by compacted and non-compacted designs. The higher the loads caused by temperature, but also in case of vibrations etc., the more a compact design will be used. In case of so-called high-capacity heating cartridges the heating coil is as close as possible to the bottom side of the surface for obtaining a uniform temperature distribution and a high load capacity.

I. Heating element design

  • Normal cartridge: Sheath of brass, steel or stainless steel, surface load up to 6 W/cm², price-efficient
  • Compacted heating cartridge: Sheath of stainless steel, surface loads of up to 12 W/cm² possible
  • High-capacity heating cartridge: Sheath of stainless steel, surface loads above12 W/cm² possible
Control equipment

Wherever heating is required, control is also necessary in almost all cases. We are of course prepared to deliver the corresponding controller for your heating cartridges. There are different variants of control which can be selected according to the desired quality.

I. Controllers

  • Electronic ON-OFF control or PID control. (-> ON-OFF control switches off the heater if the temperature is exceeded, and switches it on again when the temperature falls below its lowest value. Thus, the temperature will always oscillate around the setpoint. The algorithm of the PID controller will optimally compensate the control fluctuations.)

  • Load switching by contactors or wear-free semiconductors (thyristors). (-> contactors are wearing parts and must be replaced after approx. 100,000 make/break operations; thyristors switch quickly and without any wear but generate more heat losses than contactors.)

  • Electromechanical control.
  • Thermostats installed on the tool are price-efficient controllers whose accuracy is sufficient for many applications.

II. Sensors

  • Thermal protectors and limiters as capillary thermostats (as a safety design as well).
  • Temperature sensors for tool or heating cartridge temperatures
Electrical connections

A variety of designs is available for electrical heating cartridges. We are prepared to agree with you on the variant suitable for your application, considering factors such as temperature, mechanical load and environmental influences.

I. Electrical connections

  • Glass-silk-insulated nickel wire for temperature of up to 250°C
  • Teflon-insulated nickel wire for temperatures of up to 220°C and moisture-proof design
  • Feeder protection of a glass-silk hollow tube, metal mesh or corrugated metal hose, gas-tight available as well.

II. Mechanical designs

  • Fastening strip
  • Knockout spigots
  • Fastening flange
  • Screw-in thread, metric or Imperial
  • Angle block or pipe bend
Lengths

The heating cartridges can be produced in lengths from approx. 30 mm up to 3000 mm. Subsequent shortening of a heating cartridge is unfortunately not possible. Therefore, the heating cartridge must be produced to its proper length.

Different heating zones (with different surface loads) can be implemented for the heated length. Depending on the diameter of the heating cartridge, these heating zones can also be selected individually. Thus, an exact temperature control is possible over the length of the heating cartridge.

Let us talk about it!

Give us a ring!
After all, we do not sell
nails.

E-Mail info@heatsystems.de
Phone: 02265 99 70-0
Fax: 02265 99 70-70

News

ISO 9001:2015

heatsystems has just passed the audit for the new ISO 9001:2015

More Info

blocked filetypes in mails

potentially dangerous
filetypes are blocked

More Info

News

Events

PRC Europe 2017

heatsystems exhibits at the PRC europe in Haburg.

From May 22nd to 23rd 2017.

More Info

Powtech 2017

heatsystems exhibits at Powtech 2017.
September 26th to 28st 2017

More Info

Events

Heatpedia

What to do, if?

Help; the heater does not work as it should!
We stand by you with advice and assistance

Learn more

What is needed?

A heater alone is not everything.
More is needed!

Learn more

Incinerator

The safe inactivation of contaminated exhaust-air from fermenters and autoclaves is unambiguously required by the German genetic technology safety regulations (GenTSV). In case of a biological contaminations the thermal treatment for inactivation is an accepted process.

This incinerator causes the contaminated exhaust-air to flow through a bulk of stainless steel balls which are heated to process temperature. The chamber size of the incinerator and the required contact time are selected on the basis of customer requirements such that a safe thermal inactivation is ensured.

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Fluids

The incinerator is designed for heating the following fluids:

I. Exhaust-air from

  • Fermenters
  • Autoclaves
  • Waste water ducts (for ventilation)

optionally usable for

  • Catalytic cleaning of air (zero air)
  • Flue-gas cleaning
Materials

The fluid to be heated and the application temperature mainly define the materials which can be used for the unheated and/or heated surfaces.

Materials of the bulk: 

  • Corrosion-resistant stainless steel
  • Aluminium oxide

Materials of the wetted components:

  • Corrosion-resistant stainless steel
  • Heat-resistant stainless steel
Control equipment

The control system for the incinerators can be provided by customers; however, the required switching devices can also be supplied by heatsystems.

It is necessary to verify the temperature of the bulk and to keep it at the required level. In addition, the heating elements must be monitored for their proper functions by monitoring the heating current consumption and the internal temperature.

The temperature sensors for the temperature of the bulk can be replaced and/or calibrated without the necessity of opening the device.

Insulation

The incinerators will be delivered insulated. The following insulation  designs are available:

I. Insulation material

  • Mineral wool with a stainless steel metal jacket.
  • Diffusion-tight or gas-tight insulation
Fluid connections

We are prepared to agree with you on the type and position of the fluid connections. The following connections are available:

I. Fluid connections

  • Standard flanges (DIN, ASME, SAE etc.)
  • Female or male thread connections
  • Clamp flanges
  • Sterile flanges
  • Dairy-type pipe connections

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Phone: 02265 99 70-0
Fax: 02265 99 70-70

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Oval tube heaters

Oval tube heaters are mainly used for efficiently heating tools and workpieces. In most cases the oval tube heaters are fixed to the tool by a clamping mechanism to keep the workpiece to temperature. Frequently, these heating elements are used to keep a plant section free from frost and/or the adjacent fluid (weir, rail or valve heating and the bottom heating of a tank as well).

G H I J B E C D F
 

also available in explosion-proof design

 
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Dimensions

Oval tube heaters are available in the dimensions 16 x 6 und 12 x 5.5 mm.

Materials

Electrical oval tube heaters are produced of different materials. In most cases, these are corrosion-resistant stainless steel such as

  • 1.4307
  • 1.4541
  • 1.4571

but also corrosion-resistant alloys such as

  • 1.4876
Structure of the heating elements

Oval tube heaters consist of a tube with a flat oval cross section where the heating coil is in its middle and converts electrical energy in thermal energy. This heating coil is fixed by a highly heat-resistant ceramic material (magnesium oxide) and is electrically insulated against the heating element sheath at the same time. The compacting process makes sure that the heater coil is held in position and can well dissipate its thermal energy to the outside.

A moisture-proof sealing compound protects the electrical connection of the tubular heater from influences from the environment.

Electrical connections

A variety of designs is available for oval tube heaters. We are prepared to agree with you on the variant suitable for your application, considering factors such as temperature, mechanical load and environmental influences.

I. Electrical connections

  • Glass-silk-insulated nickel wire for temperature of up to 250°C
  • Teflon-insulated nickel wire for temperatures of up to 220°C and moisture-proof design
  • Feeder protection of a glass-silk hollow tube, metal mesh or corrugated metal hose, gas-tight available as well.

II. Mechanical designs

  • Fastening strip
  • Fastening flange
  • Screw-in thread, metric or Imperial
Control equipment

Wherever heating is required, control is also necessary in almost all cases. We are of course prepared to deliver the corresponding controller for your heating cartridges. There are different variants of control which can be selected according to the desired quality.

I. Controllers

  • Electronic ON-OFF control or PID control. (-> ON-OFF control switches off the heater if the temperature is exceeded, and switches it on again when the temperature falls below its lowest value. Thus, the temperature will always oscillate around the setpoint. The algorithm of the PID controller will optimally compensate the control fluctuations.)

  • Load switching by contactors or wear-free semiconductors (thyristors). (-> contactors are wearing parts and must be replaced after approx. 100,000 make/break operations; thyristors switch quickly and without any wear but generate more heat losses than contactors.)

  • Electromechanical control.
  • Thermostats installed on the tool are price-efficient controllers whose accuracy is sufficient for many applications.

II. Sensors

  • Thermal protectors and limiters as capillary thermostats (as a safety design as well).
  • Temperature sensors for tool or heating cartridge temperatures

Let us talk about it!

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After all, we do not sell
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E-Mail info@heatsystems.de
Phone: 02265 99 70-0
Fax: 02265 99 70-70

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Tubular heaters

Tubular heaters are heating elements which can be used universally. The heating of fluids is the most important area where these heating elements produced by machines are used. To this effect, the tubular heaters are welded or soldered into a screwed connection or in a flange. Higher heating powers of up some hundred kW can be implemented in an electrical flange heater or air heater by interconnecting several tubular heaters.

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Dimensions

Tubular heaters are available with the dimensions 6.5, 8.5, 11.5 and 16 mm.

Materials

Electrical tubular heaters are produced of different materials. In most cases, these are corrosion-resistant stainless steel such as

  • 1.4307
  • 1.4541
  • 1.4571

but also corrosion-resistant alloys such as

  • 1.4876
  • 2.4858

Partially, materials such as

  • copper, nickel-plated as well,
  • steel

are used.

Structure of the heating elements

Electrical tubular heaters consist of a tube with a circular cross section where the heating coil is in its middle and converts electrical energy in thermal energy. This heating coil is fixed by a highly heat-resistant ceramic material (magnesium oxide) and is electrically insulated against the heating element sheath at the same time. The compacting process makes sure that the heater coil is held in position and can well dissipate its thermal energy to the outside.

A moisture-proof sealing compound protects the electrical connection of the tubular heater from influences from the environment.

Control equipment

Wherever heating is required, control is also necessary in almost all cases. We are of course prepared to deliver the corresponding controller for your heating cartridges. There are different variants of control which can be selected according to the desired quality.

I. Controllers

  • Electronic ON-OFF control or PID control. (-> ON-OFF control switches off the heater if the temperature is exceeded, and switches it on again when the temperature falls below its lowest value. Thus, the temperature will always oscillate around the setpoint. The algorithm of the PID controller will optimally compensate the control fluctuations.)

  • Load switching by contactors or wear-free semiconductors (thyristors). (-> contactors are wearing parts and must be replaced after approx. 100,000 make/break operations; thyristors switch quickly and without any wear but generate more heat losses than contactors.)

  • Electromechanical control.
  • Thermostats installed on the tool are price-efficient controllers whose accuracy is sufficient for many applications.

II. Sensors

  • Thermal protectors and limiters as capillary thermostats (as a safety design as well).
  • Temperature sensors for tool or heating cartridge temperatures
Electrical connections

A variety of designs is available for electrical heating cartridges. We are prepared to agree with you on the variant suitable for your application, considering factors such as temperature, mechanical load and environmental influences.

I. Electrical connections

  • Usually, a threaded bolt M3 (RHK6,5), M4 (RHK8,5), M5 (RHK11,5) or M6 (RHK16))

Let us talk about it!

Give us a ring!
After all, we do not sell
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E-Mail info@heatsystems.de
Phone: 02265 99 70-0
Fax: 02265 99 70-70

News

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heatsystems exhibits at the PRC europe in Haburg.

From May 22nd to 23rd 2017.

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heatsystems exhibits at Powtech 2017.
September 26th to 28st 2017

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Ceramic heating elements

The ceramic heating elements are most frequently used whenever liquids must be heated by exchangeable heating elements .

To this effect, these heating elements are inserted into metallic protective tubes; it is not necessary to drain the liquid surrounding the pipe.

G H I J B E C D F
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Diameters

Ceramic heating elements can be produced for a variety of diameters. The following list shows the most frequent diameters; in addition, intermediate dimensions are also available.

I. Usual dimensions

  • 21,5 mm
  • 32 mm
  • 36,5 mm
  • 58 mm
Materials

Insulator

Ceramic preformed parts are used as an insulator, accepting the heating contactor wire in half-open grooves, thus ensuring a sufficient isolation distance to the metallic protective tube.

Heating conductor

Highly heat-resistant alloys are used for the heating conductor. The heating conductor wire is held in the ceramic design in a spiralized condition.

Installation

Types of mounting

  • Horizontal
    This is the preferred mounting method for ceramic heating elements. Unless otherwise specified, ceramic sectional radiators must only be operated in a horizontal position.
  • Vertical
    The sinking of the heating conductor spiral can be prevented by special ceramic designs for vertical operation.

Normal ceramic heating elements require at least the length of the heater space for an installation and a removal since the heater cannot be bent. Our ceramic heating elements can partially be designed for bending by a special ceramic variant.

Control equipment

Wherever heating is required, control is also necessary in almost all cases. We are of course prepared to deliver the corresponding controller for your ceramic sectional radiators. There are different variants of control which can be selected according to the desired quality.

I. Controllers

  • Electronic ON-OFF control or PID control. (-> ON-OFF control switches off the heater if the temperature is exceeded, and switches it on again when the temperature falls below its lowest value. Thus, the temperature will always oscillate around the setpoint. The algorithm of the PID controller will optimally compensate the control fluctuations.)

  • Load switching by contactors or wear-free semiconductors (thyristors). (-> contactors are wearing parts and must be replaced after approx. 100,000 make/break operations; thyristors switch quickly and without any wear but generate more heat losses than contactors.)

  • Electromechanical control.
  • Thermostats installed on the tool are price-efficient controllers whose accuracy is sufficient for many applications.

II. Sensors

  • Thermal protectors and limiters as capillary thermostats (as a safety design as well).
  • Temperature sensors for tool or heating cartridge temperatures
Electrical connections

Different connection designs are available for the ceramic sectional heaters. We are prepared to agree with you on the variant suitable for your application, considering factors such as temperature, mechanical load and environmental influences.

I. elektrische Anschlüsse

  • Threaded pins M4, M5 or M6
  • Motor terminal panel
Lengths

The ceramic sectional radiators can be produced in lengths from approx. 300 mm up to approx. 8,000 mm. Subsequent shortening of a heating cartridge is unfortunately not possible. Therefore, the heating cartridge must be produced to its proper length.

The unheated area must at least be 50 mm and can be determined as desired above this length.

When selecting the heater length make sure that the sectional radiator expands more than the tubular jacket in operation. Therefore, the sectional radiator must be at least 50 mm shorter than the tubular jacket.

Let us talk about it!

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After all, we do not sell
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E-Mail info@heatsystems.de
Phone: 02265 99 70-0
Fax: 02265 99 70-70

News

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blocked filetypes in mails

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PRC Europe 2017

heatsystems exhibits at the PRC europe in Haburg.

From May 22nd to 23rd 2017.

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heatsystems exhibits at Powtech 2017.
September 26th to 28st 2017

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Events

Heatpedia

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What is needed?

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More is needed!

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Silicone heaters

Silicone heaters are designed for heating flat components. The heat-generating heating conductor has the shape of a wire or a film and is framed between two glas-fibre reinforced silicone mats. This makes this heating element variant water-tight and flexible.

The silicone heaters can be designed self-adhesive on one side. The other side can be equipped with a silicone foam insulation. This ensures a good heat transfer and minimizes losses to the outside.

G H I J B E C D F
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Dimensions

Silicone surface radiators can be produced up to a maximum width of 940 mm and a maximum length of 3000 mm.

Structure of the heating elements

The heating conductor which converts electrical energy into thermal energy, can be designed as:

  • Wound wiret
    Ideal for prototypes or low numbers of pieces since the non-recurring costs are low.
  • Etched film
    Ideal for medium and higher numbers of pieces. This provides more exact temperature distributions than the design with its wound wire.

The heating conductor is embedded between fibre-glass reinforced silicone mats, each having a thickness between 0.7 and 3 mm depending on the application

The thermal stability of the silicone mats is -60 - +200°C for the normal design and -20 - +180°C for the self-adhesive variant.

Fastening

The silicone heaters can be connected to the surface to be heated in different ways:

  • Pressing on by a pressure platee
  • Bonding by a self-adhesive rear side
  • Bonding by temperature-stable silicone
  • Fixing by adhesive strap or pressing spring
Control equipment

Wherever heating is required, control is also necessary in almost all cases. We are of course prepared to deliver the corresponding controller for your ceramic sectional radiators. There are different variants of control which can be selected according to the desired quality.

I. Controllers

  • Electronic ON-OFF control or PID control. (-> ON-OFF control switches off the heater if the temperature is exceeded, and switches it on again when the temperature falls below its lowest value. Thus, the temperature will always oscillate around the setpoint. The algorithm of the PID controller will optimally compensate the control fluctuations.)

  • Load switching by contactors or wear-free semiconductors (thyristors). (-> contactors are wearing parts and must be replaced after approx. 100,000 make/break operations; thyristors switch quickly and without any wear but generate more heat losses than contactors.)

  • Electromechanical control.
    Thermostats installed on the tool are price-efficient controllers whose accuracy is sufficient for many applications.

II. Sensors

  • Thermal protectors and limiters as capillary thermostats (as a safety design as well).
  • Temperature sensors for tool and heating element temperatures.
Electrical connections

A variety of designs is available for silicone heaters. We are prepared to agree with you on the variant suitable for your application, considering factors such as temperature, mechanical load and environmental influences.

I. Electrical connections

  • Glass-silk-insulated nickel wire for temperature of up to 250°C
  • Teflon-insulated nickel wire for temperatures of up to 220°C and moisture-proof design

 

Let us talk about it!

Give us a ring!
After all, we do not sell
nails.

E-Mail info@heatsystems.de
Phone: 02265 99 70-0
Fax: 02265 99 70-70

News

ISO 9001:2015

heatsystems has just passed the audit for the new ISO 9001:2015

More Info

blocked filetypes in mails

potentially dangerous
filetypes are blocked

More Info

News

Events

PRC Europe 2017

heatsystems exhibits at the PRC europe in Haburg.

From May 22nd to 23rd 2017.

More Info

Powtech 2017

heatsystems exhibits at Powtech 2017.
September 26th to 28st 2017

More Info

Events

Heatpedia

What to do, if?

Help; the heater does not work as it should!
We stand by you with advice and assistance

Learn more

What is needed?

A heater alone is not everything.
More is needed!

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Infrared emitters

Infrared emitters can heat a variety of materials. Heating by radiation has the advantage that no contact between the object and the thermal source is required. For example, infrared radiation is used in practice to heat plastic films for the thermal forming process. Heating by radiation can also be used in vacuum.

A disadvantage of heat transfer by infrared radiation is the fact that a relatively high temperature of the thermal source is required and that the material to be heated must absorb the infrared radiation, i.e. it must not be metallically bare.

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Radiator variants

Infrared emitters are mainly distinguished by two variants which differ in the wavelength of the radiation and the reponse time.

I. Ceramic infrared emitters

  • Wave length: long waves
  • Response time: long
  • Mechanical stability: more robust than quartz-type infrared radiator

II. Quartz-type infrared emitters

  • Wave length: medium to long waves
  • Response time: medium
  • Mechanical stability: more sensitive than ceramic infrared radiators
Dimensions

Infrared radiators are available in different standardized dimensions:

I. . Ceramic infrared emitters, flat

  • V3: 122 x 122 mm (150 750 W)
  • V4: 122 x 60 mm (125 - 500 W)
  • V9: 245 x 60 mm (150 - 1000 W)

II. Ceramic infrared emitters, curved

  • V1: 245 x 60 mm (150 - 1000 W)
  • V2: 122 x 60 mm (125 - 500 W)
  • V5: 68 x 60 mm (75 - 200 W)

III. Quartz-type infrared emitters, flat

  • Q5: 123 x 62 mm (150 - 375 W)
  • Q10: 248 x 62 mm (300 - 750 W)

Let us talk about it!

Give us a ring!
After all, we do not sell
nails.

E-Mail info@heatsystems.de
Phone: 02265 99 70-0
Fax: 02265 99 70-70

News

ISO 9001:2015

heatsystems has just passed the audit for the new ISO 9001:2015

More Info

blocked filetypes in mails

potentially dangerous
filetypes are blocked

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News

Events

PRC Europe 2017

heatsystems exhibits at the PRC europe in Haburg.

From May 22nd to 23rd 2017.

More Info

Powtech 2017

heatsystems exhibits at Powtech 2017.
September 26th to 28st 2017

More Info

Events

Heatpedia

What to do, if?

Help; the heater does not work as it should!
We stand by you with advice and assistance

Learn more

What is needed?

A heater alone is not everything.
More is needed!

Learn more

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