CSN® flow heater type 97/D

CSN® industrial instantaneous water heaters for the electrical heating of flowing media, whether liquid or gaseous, offer efficient solutions for process engineering applications.


CSN® flow heaters can be used in a variety of industrial applications, especially where fast and precise heating of liquids or gases is required. They are used in areas such as the chemical industry and process engineering. These heaters offer fast heating, precise temperature control, compactness, energy efficiency and low maintenance. Overall, they are a reliable solution for optimising industrial processes by increasing efficiency and reducing operating costs.

Product benefits

  • Low maintenance - reducing operating costs and downtime.
  • High energy efficiency - almost 100% conversion of electrical energy into thermal energy.
  • Precise temperature control and monitoring possible in conjunction with electronic controls.
  • Manufactured in accordance with Pressure Equipment Directive 2014/68/EU.
  • High operational safety and reliability
  • Good corrosion resistance of the materials

Technical data


Liquid and gaseous


0.5 to 5000 kW


110 to 690 V

Process data

Medium, pressure and temperature according to specification

Process connection

Flange: NW 40 to 1000

Heating elements

Tubular radiators

Cartridge radiators

High-performance cartridge heaters

Materials Heating elements

Steel;1.4404 (AISI 316L);

1.4541 (AISI 321); 1.4571 (AISI 316 Ti);

1.4876 (Incoloy 800); 2.4858 (Incoloy 825)

Installation length of cartridge heater

300 to 6000 mm

Installation length of tubular heating element

150 to 3500 mm

Temperature monitoring

Temperature controller,

temperature limiter,

Safety temperature limiter,

PT100 or thermocouples

Protection class

IP00 to IP66

Customised versions on request

The following certifications are available on request:

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