Gas non-return valve 338-ES

for oxygenstainless steelspring

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 no leaks – using 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 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 ideal for use with corrosive gases in the chemical industry, process technology or in laboritories WITT non-return valves may be mounted in any position / orientation the maximum ambient / working temperature is 70 °C / 158 °F 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. The dirt filter may be replaced by competent staff Approvals Company certified to ISO 9001and PED 2014/68/EC Module H CE-marked in accordance with PED 2014/68/EC Cleaned for Oxygen Service according to EIGA IGC Doc 13/12/E: Oxygen Pipeline and Piping Systems