Non-Return Valve NV150 | wittgas.com

Non-return Valve NV150

W I T T Non Return Valve N V150

Data sheet Quotation request

Non-return valve for the prevention of unintended gas mixtures, for flow rates up to 80 m³/h (air), up to 16 bar, G 1/2

  • safety element: non-return valve [NV]
  • every non-return valve 100% tested
  • DIN EN ISO 5175-2
  • ultra-low opening pressures (approx. 4 mbar), ultra-low pressure drop
  • minimal noise emission
  • 35 X 60 mm, 221 g, G ½"
  • dirt filter (100 μm) on gas inlet

This model is also available in Stainless Steel and Aluminum

Information

WITT non-return valves for reliable protection against dangerous reverse gas flow.
Flow-optimised valve system causes very low pressure drop at minimal noise emission.
Every non-return valve 100% tested.

Benefits

  • a spring loaded non-return valve prevents back feeding of gases which could lead to unwanted gas mixtures
  • low pressure drops – using complex valve assembly with low opening pressures (ca. 4 mbar)
  • stainless steel filter (100 μm) in the gas inlet protects the non-return valve against dirt contamination, extending the service life
  • flow-optimised valve system for:

    - ultra low pressure drop
    - minimal noise emission

  • no leaks – using of a spring loaded valve assembly with elastomer sealing
  • in accordance with DIN EN ISO 5175-2
  • available in brass or stainless steel (ES)
  • 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.
  • Use is possible for applications according to EN 746-2
  • WITT non-return valves may be mounted in any position / orientation
  • the maximum ambient / working temperature is 70 °C / 158 °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 according to ISO 9001
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.

Accessories

Test Rig 722

Test Rig 722

For the annual testing of WITT flashback arrestors and non-return valves

Applications

Non-return Valve NV150 is used in following areas:

Products

WITT Zentrale

Give us a call!

Headquarters: +49 (0)2302-8901-0
WITT UK: +44 (0)1925 234466

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