Non-Return Valves | wittgas.com

Non-Return Valves

Witt Non Return Valves 70 70u

Non-Return Valve 70 / 70U

Non-return valve for the prevention of unintended gas mixtures, for flow rates up to 1120 m³/h (air), up to 16 bar, for use in thermal processing, certified to EN 746-2

WITT Non-return valve NV300

Non-Return Valve NV300

Non-return valve for the prevention of unintended gas mixtures, for flow rates up to 3260 m³/h (air), up to 16 bar, for use in thermal processing plants, certified to EN746-2

WITT Non-return valve 338-ES

Non-Return Valve 338-ES

Non-return valve, stainless steel, for the prevention of unintended gas mixtures, for flow rates up to 3260 m³/h (air), up to 16 bar for use in thermal processing plants, certified to EN746-2

WITT Non-return valve NV400

Non-Return Valve NV400

Non-return valve for the prevention of unintended gas mixtures, for flow rates up to 8100 m³/h (air), up to 16 bar, for use in thermal processing plants, certified to EN746-2

Witt Non Return Valve Nv400 Intermediate Flange Version

Non-Return Valve NV400 intermediate flange version

Non-return valve (intermediate flange version) for the prevention of unintended gas mixtures, for flow rates up to 8100 m³/h (air), up to 16 bar, for use in thermal processing plants, certified to EN746-2

WITT Non-return valve 339-ES

Non-Return Valve 339-ES

Non-return valve, stainless steel, for the prevention of unintended gas mixtures, for flow rates up to 8100 m³/h (air), up to 16 bar for use in thermal processing plants, certified to EN746-2

Witt Non Return Valve 339 Es Intermediate Flange Version

Non-Return Valve 339-ES intermediate flange version

Non-return valve stainless steel (intermediate flange version) for the prevention of unintended gas mixtures, for flow rates up to 8100 m³/h (air), up to 16 bar, for use in thermal processing plants, certified to EN746-2

Witt Non Return Valve 800 Es

Non-Return Valve 800-ES

Non-return valve, stainless steel, for the prevention of unintended gas mixtures, up to 300 bar

Witt Non Return Valve Rv80 Nv800

Non-Return Valve NV800

Non-return valve for the prevention of unintended gas mixtures, for flow rates up to 14000 m³/h (air)

Witt Non Return Valve Rv320 Nv2000

Non-Return Valve NV2000

Non-return valve for the prevention of unintended gas mixtures, for flow rates up to 26800 m³/h (air), for use in thermal processing plants, certified to EN746-2

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Non-Return Valves

WITT non-return valves protect plants, pipelines and outlet points against reverse gas flow and meet all relevant standards and regulations. The product range of non-return valves includes a large choice of nominal sizes (up to DN200) and flow rates (0.35 – 106 SCFH).

The sophisticated valve technology of WITT non-return valves provides small pressure drops making them also suitable for applications with smallest opening pressures. A high-quality sealing system with elastomeres prevents leakages, and dirt filters at the inlet point assure long service life of the non-return valves.

Some non-return valve models can also be used as flashback arrestors. All non-return valves can be mounted in any orientation, are available with all connections, in brass and stainless steel and are suitable for almost all technical gases.

Practical Example: Non-return Valves in Heat Treatment

WITT Zentrale

Give us a call!

Headquarters: +49 (0)2302-8901-0
WITT UK: +44 (0)1925 234466

Send request Get call-back

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