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
• no leaks – using of a spring-loaded valve assembly with elastomer sealing, opening pressure approx. 2 bar
• diverse applications – useful for many technical gases

Operation / Usage:

• non-return valves are used to protect equipment and pipelines against dangerous reverse gas flow
• ideal for use with corrosive gases in the chemical industry, process technology or in laboratories
• WITT non-return valves may be mounted in any position /orientation
• the maximum ambient/working temperature is 150 °C / 302 F° (max. 60 °C / 140 °F at oxygen)

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 97/23/EC Module H
CE-marked in accordance with PED 97/23/EC