Non-Return Valve 800-ES

Non-return valve, stainless steel, for the prevention of unintended gas mixtures, up to 300 bar, 1/4" NPT

safety element: non-return valve [NV]
every non-return valve 100% tested
also ideal for use with corrosive gases
compact and light: 17,5 X 70 mm, 730 g

Information

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
no leaks – using 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 (check 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 laboritories
WITT non-return valves (check valves) may be mounted in any position /orientation
the maximum ambient / working temperature is 150 °C / 302 F° (max. 60 °C / 140 °F at oyxgen)

Maintenance:

annual testing of the non-return valve (check valve) and body leak tightness is recommended
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