WITT non-return valves (check valves) for reliable protection against dangerous reverse gas flow. Every non-return valve (check valve) 100% tested.
Benefits:
a spring-loaded non-return valve (check valve) prevents a reverse flow of gases which could lead to unwanted gas mixtures
low opening pressure approx. 250 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
Operation / Usage:
non-return valves (check valves) are used to protect equipment and pipelines against dangerous reverse gas flow
Maintenance:
annual testing of the non-return valve (check valve), body leak tightness and flow capacity is recommended
WITT is happy to supply special test equipment
non-return valves (check valves) are only to be serviced by the manufacturer
Approvals
Company certified to ISO 9001 and PED 2014/68/EC Module H
CE-marked in accordance with PED 2014/68/EC
Designed for Oxygen Service in accordance with EIGA 13/20 and CGA G-4.4: Oxygen Pipeline and Piping Systems
Cleaned for Oxygen Service in accordance with EIGA 33/18 and CGA G-4.1: Cleaning of Equipment for Oxygen Service