WITT non-return valves for reliable protection against dangerous reverse gas flow. Flow-optimised valve system causes very low pressure drop at minimal noise emission. Every non-return valve 100% tested.
Benefits
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a spring loaded non-return valve prevents back feeding of gases which could lead to unwanted gas mixtures
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low pressure drops – using complex valve assembly with low opening pressures (ca. 4 mbar)
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stainless steel filter (100 μm) in the gas inlet protects the non-return valve against dirt contamination, extending the service life
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flow-optimised valve system for:
- ultra low pressure drop
- minimal noise emission
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no leaks – using of a spring loaded valve assembly with elastomer sealing
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in accordance with DIN EN ISO 5175-2
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available in brass or stainless steel (ES)
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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.
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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
Biogas
Glass Industry
Thermal Processing
Hydrogen Applications
All you need to run your factory !
