Non-Return Valve 654-ES
Non-return valve stainless steel for the prevention of unintended gas mixtures, for flow rates up to 11,059 scfh (air), up to 870 psi, G 1/8
- safety element: non-return valve [NV]
- every non-return valve 100% tested
- ultra-low opening pressures (approx. 30 mbar), ultra-low pressure drop
- also ideal for use with corrosive gases
- small and light: 0.55 X 1.64 inches, 1.56 oz
- up to 870 psi working pressure (O2: up to 435 psi)
- air max. 4,589 scfh (free flow-off)
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
- 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 (check valves) are used to protect equipment and pipelines against dangerous reverse gas flow
- WITT non-return valves (check 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 (check valve) and body leak tightness 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 97/23/EC Module H
Cleaned for Oxygen Service according to EIGA IGC Doc 13/12/E: Oxygen Pipeline and Piping Systems
Downloads
Here you find all downloads for the product.