Piston check valve 654-ES

threadedgasfor oxygen

WITT non-return valves for reliable protection against dangerous reverse gas flow. Every non-return valve 100% tested. 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 (approx. 30 mbar) no leaks – using a spring-loaded valve assembly with elastomer sealing 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 compact design, small mounting dimensions Operation / Usage: non-return valves are used to protect equipment and pipelines against dangerous reverse gas flow WITT non-return valves may be mounted in any position / orientation Maintenance: annual testing of the non-return valve and body leak tightness is recommended WITT is happy to supply special test equipment non-return valves are only to be serviced by the manufacturer Approvals Company certified to ISO 9001 and PED 97/23/EC Module H Cleaned for Oxygen Service according to EIGA IGC Doc 13/12/E: Oxygen Pipeline and Piping Systems