Ultra-performance protection against gas return: compact, quiet, ideal for low pressure applications. Opening pressure approx. 5 mbar, working pressure up to 20 bar, G / NPT 1.1/2′ safety element: non-return valve [NV] every non-return valve 100% tested DIN EN ISO 5175-2 ultra-low opening pressures (approx. 5 mbar), ultra-low pressure drop minimal noise emission dirt filter (100 μm) on gas inlet ideal for applications where low pressures are used 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 a spring loaded non-return valve prevents back feeding of gases which could lead to unwanted gas mixtures low pressure drop – using complex valve assembly with low opening pressures (ca. 5 mbar) stainless steel filter (100 μm) in the gas inlet protects the non-return valve against dirt contamination, extending the service life flow-optimised valve system for: — ultra low pressure drop — minimal noise emission no leaks – using of a spring loaded valve assembly with elastomer sealing in accordance to DIN EN ISO 5175-2 available in brass or stainless steel diverse applications – useful for many technical gases reduce installation costs – the spring loaded valve is not affected by gravity and may be installed in any orientation Operation / Usage 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
Технические характеристики
CharacteristicsFluidfor gasConnexionDIN, NPTApplicationssafety, low-pressureMaterialstainless steelOther characteristicscompactDN
1.5 in
Pressure
Max.: 20 bar (290.1 psi)
Min.: 0 bar (0 psi)
Temperature
Max.: 70 °C (158 °F)
Min.: -20 °C (-4 °F)
