Non-Return Valve 600H

Non-return valve for the prevention of unintended gas mixtures, for flow rates up to 1900 m³/h (air), up to 40 bar, G 1/2 - G 1

safety element: non-return valve [NV]
every non-return valve 100% tested
DIN 8521-2
low opening pressure approx. 250 mbar
52 X 65 mm, 589-745 g

This model is also available in Stainless Steel

Information

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 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 are used to protect equipment and pipelines against dangerous reverse gas flow
the maximum ambient / working temperature is 70 °C / 158 °F

Maintenance:

annual testing of the non-return valve, body leak tightness and flow capacity 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 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