Non-Return Valve NV300, Stainless Steel (formerly 338-ES) | wittgas.com

Non-Return Valve NV300, Stainless Steel (formerly 338-ES)

Witt Non Return Valve Nv300 Es

Data sheet Quotation request

Non-return valve, stainless steel, for the prevention of unintended gas mixtures, for flow rates up to 3260 m³/h (air), up to 16 bar for use in thermal processing plants, certified to EN746-2, G 1 - G 1.1/4

  • safety element: non-return valve [NV]
  • every non-return valve 100% tested
  • protects against flashbacks, for fuel gas-compressed air- mixtures
  • ultra-low opening pressures (approx. 3.5 mbar), ultra-low pressure drop
  • ideal for biogas desulphurisation systems
  • also ideal for use with corrosive gases
  • dirt filter (100 μm) on gas inlet
  • 65 X 115 mm, 1.500 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 return flow of gases which could lead to unwanted gas mixtures
  • low pressure drops – using complex valve assembly with low opening pressures
  • no leaks – using a spring-loaded valve assembly with elastomer sealing
  • stainless steel filter (100 μm) in the gas inlet protects the non-return valve against dirt contamination, extending the service life
  • 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. Use is possible for applications in accordance with EN 746-2
  • 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 70 °C / 158 °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. The dirt filter may be replaced by competent staff

Approvals
Company certified to ISO 9001and PED 2014/68/EC Module H
CE-marked in accordance with PED 2014/68/EC
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 NV300, Stainless Steel (formerly 338-ES) is used in following areas:

Products

WITT Zentrale

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WITT UK: +44 (0)1925 234466

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