Non-Return Valve 654-ES

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
• the maximum ambient / working temperature is 60 °C / 140 °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

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