CSN® flow heater type 97/VS

Our CSN® flow heater 97/VS is a modular heater, ideal for low volume flows.


CSN® industrial flow heaters are ideal for heating liquids and gaseous media. By using our CSN® electric screw-in heaters, which are specially designed for your process, we guarantee a long service life and high efficiency. The 97 VS electric instantaneous water heater consists of a robust stainless steel flow tube and offers the flexibility of individual replaceable screw-in heating elements. Thanks to high-quality stainless steel, it is also suitable for heating aggressive media.

Product advantages

  • Also suitable for low volume flows
  • Compact, welded stainless steel design
  • Modular design
  • In accordance with Pressure Equipment Directive 2014/68/EU
  • Highly compressed U-shaped CSN® tubular heating elements

Technical data


Liquid and gaseous


0.5 to 100 kW


110 to 690 V

Ambient temperature range

Standard +5 to +35°C

Process data

Medium, pressure and temperature according to specification

Process connection

Female thread DIN EN 10226 RP

3/4" to 1 1/2"

Flanges DN32 to DN65

Heating elements

Tubular heating elements

Materials Heating elements

1.4404 (AISI 316L); 1.4541 (AISI 321); 1.4571 (AISI 316 Ti);

1.4876 (Incoloy 800); 2.4858 (Incoloy 825)

Installation length screw-in heater

300 to 3500 mm

Flow tube

Single or multi-tiered in U-shape

Flow tube materials

1.4301 (AISI 304); 1.4404 (AISI 316L);

1.4408; 1.4571 (AISI 316 Ti)

Temperature monitoring

Temperature controller,

temperature limiter,

Safety temperature limiter,

PT100 or thermocouples

Operating pressure

0 to 16 bar

Protection class

IP00 to IP65

Customised versions on request

The following certifications are available on request:

Your contact persons

Your request

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