Immersion heaters

Solution for heating of fluids such as water and oil


Immersion heaters represent reliable and cost effective solution for direct heating of liquids such as water, oil, etc. Complete heating surface must be immersed in heating fluid.
Tubular heating elements are U-shaped and soldered, brazed or welded on threaded or flat flanges or nipples. Wide spectrum of flanges as well as materials for flanges and heaters enables us to meet almost every costumer's requirement. We produce heaters with protective caps, thermostats and thermal fuses and thermostat protective tube. As an alternative, there are also immersion heaters made of ceramic elements for indirect heating.
We have a wide range of elements on stock so we could deliver products in short period of time. We also offer customized immersion heaters as desired.


  • Boilers, Tanks, Water heaters
  • Industrial baths
  • Coffee machines
  • Dishwashers for commercial kitchens
  • Steam generators
  • Thermal oils
  • Gearing box oils
  • Hydraulic oils
  • Flow heaters

Technical data

Type of heating

Direct – heating element inserted in liquid
Indirect – heating element separated from


Tube material:
Copper, Stainless steel, Incoloy 800, Incoloy 825

Flange material:
Steel, Brass, Stainless steel AISI 304 / EN 1.4301

Protective cap material:
Aluminum, Stainless steel, Plastic (PP, PA, PE, ABS)


Diameter of tubular elements:
Ø6.5, Ø8.5, Ø10, Ø12, Ø14mm

Diameter of ceramic elements:
Ø30, Ø32, Ø34, Ø36, Ø38, Ø41, Ø44, Ø46, Ø52, Ø54, Ø64mm

Immersed length: 200-6000mm
Inactive length: 50-1000mm

Threaded flange: G1", G1¼", G1½", G2", G2¼", G2½", G3"
Flat flange: Acc. to customer request


Heater must be always immersed into liquid

Instalation: Vertical position, Horizontal position

Fixing: Flat flange, Threaded flange

Accessories: Gaskets, Nuts, Reduction nipples


M4, M5, M6, Tab terminals, Cables

Protective caps with cable glands

Terminal boxes with temperature regulating device


Flat flange immersion heaters
Threaded flange immersion heaters
Immersion heaters with thermostat
Immersion heaters for indirect heating

Standard range or acc. to customer specification


Voltage: Max. 500V, for higher values consult us
Surface load: Max. 25W/cm²
Dielectric strength: 1500V

Pressure test up to 10 bars
Protection class: IP55 or IP66
Safety acc. to EN 60335-1

Product examples

Flange immersion heaters

Efficient heating and robust, industrial design

Indirect immersion heaters

Can be changed without discharge of the liquid

Screw-IN Immersion heaters

With flanges in stainless steel or brass

THERMOSTAT Immersion heaters

Equipped with temperature limiter and terminal box