WITT non-return valves for reliable protection against dangerous reverse gas flow.
Every non-return valve 100% tested.
The best non-return valves in the world.
Benefits:
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a spring-loaded non-return valve prevents a reverse flow of gases, which could lead to unwanted gas mixtures
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low pressure drops – using complex valve assembly with low opening pressures (approx. 30 mbar)
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no leaks – using a spring-loaded valve assembly with elastomer sealing
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diverse applications – useful for many technical gases
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reduce installation costs – the spring-loaded valve is not affected by gravity and may be installed in any orientation
Operation / Usage:
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non-return valves are used to protect equipment and pipelines against dangerous reverse gas flow. Use is possible for applications according to EN 746-2
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WITT non-return valves may be mounted in any position / orientation
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the maximum ambient / working temperature is 70 °C / 158 °F
Maintenance:
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annual testing of the non-return valve and body leak tightness is recommended
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WITT is happy to supply special test equipment
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non-return valves are only to be serviced by the manufacturer
Hydrogen Applications
Glass Industry
Thermal Processing