Check valves (Medium pressure)

For medium pressure applications up to 1,379 bar / 20.000 psi

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Part no.
check-valve-mp
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Wherever a medium needs to flow in just one direction within a pipeline system and return flow needs to be prevented, WEH® check valves fulfil this function with absolute reliability.

WEH® check valves for medium pressure applications are available in two versions:

  • with o-ring seaingl for special tightness requirements, especially for gaseous media
  • with metal ball sealing for frequent pressure changes and lower tightness requirements, especially for liquid media.
Technical Data
Max. operating pressure at B2PS
Cracking Pressure0.97 - 1.79 bar (14 - 26 psi)
Temperature RangeO-ring-version: -17.8°C up to +204°C
Ball-version: -79°C up to +649°C
MaterialHigh-strength stainless steel
Sealing MaterialO-ring-version: FKM
Ball-version: Stainless steel 316
Connection geometryMedium pressure fitting 60° Cone & Thread
Conformity / Tests / ApprovalsPressure equipment type: Pipe-like, pressure-retaining equipment in accordance with Article 2
No. 5 of the Pressure Equipment Directive
Classification: Article 4, paragraph 3
  • Delivery includes pre-assembled pressure rings and pressure screws
  • High flow rate thanks to large technical nominal sizes
  • Available in two versions (with o-ring or ball seal)
  • Suitable for pipe threads from 1/4“ to 1” (external diameter)

WEH® medium pressure check valves are designed for applications with both liquid and gaseous media of fluid group 2 DGR.
Special versions are available for hydrogen applications. Please inquire!

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