Gas non-return valve NV800

DINflangebrass

safety element: non-return valve [NV] every non-return valve 100% tested protects against flashbacks for fuel gas-compressed air-mixtures offer minimum pressure drops – using complex valve assembly with low opening pressures (approx. 6-8 mbar) dirt filter (100 μm) on gas inlet may be mounted in any position / orientation 200 X 350 mm, 20 kg Benefits: a spring-loaded non-return valve prevents a reverse flow of gases which could lead to unwanted gas mixtures low pressure drops – using complex valve assembly with low opening pressures, NV800 approx. 6 - 8 mbar no leaks – using of a spring-loaded valve assembly with elastomer sealing stainless steel filter (100 μm) in the gas inlet protects the non-return valve against dirt contamination, extending the service life 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 in accordance with EN 746-2 non-return valves are proved in accordance with DIN EN ISO 5175-2. They may also be used as a safety device to protect against flashbacks (proved in accordance with DIN EN ISO 5175-1 point 6.7), which may result from the combustion of natural gas/ LPG with air Maintenance: annual testing of the non-return valve and body leak tightness is recommended non-return valves are only to be serviced by the manufacturer Approvals Company certified to ISO 9001 and PED 2014/68/EU Module H