Non-Return Valves

In accordance with DIN EN ISO 8434-1

  • Non-Return Valves, 24° Tube Connector, EN ISO 8434-1 up to 400 bar
  • Ball Valves, up to 400 bar
  • Lock Valves
  • Materials
    Construction Steel, Stainless Steels,
    Special Alloys,
    Galvanized Steel, Cr(VI)-free, Standard Seal Material NBR.
    Stainless Steel (1.4571), Standard Steel Material FKM.

Technical Properties of Non-Return Valves

Non-Return Valve closing with poppet with integrated elastomeric sealing disc. Spring fixed in position with shaft, ensuring center position of the poppet. The design of the inside parts results in an optimized flow without obstruction of the cross section. Any flow velocity above 8 m/s should be avoided in general.

Opening pressure of the non-return valves

The standard opening pressure is 1 bar. Other opening pressures are available upon request such as 0.2 bar to 6 bar (please specify in your order).

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