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Non return valves

Parker non-return valves with nominal pressure ratings up to PN 420 bar offer a wide range of types, making them very flexible. The variety of types starts with the item RHD with tube connection both ends, the RHV/RHZ with tube connection to male stud, RHDI with female thread both ends, RVP with valve cartridges up to the I-TL with valve internal parts. The non return valves are available in steel with Cr(VI)free surface, stainless steel and brass. Seals in NBR or FKM are available on request.  Parker non-return valves are all packed again contamination. Parker non-return valves can be used for hydraulic oil, low flammability hydraulic fluids (excent for types HFC: for HFD types; FKM seals are necessary). Air pressure tested. Not suitable for steam, combustible/explosive gases, or oxygen.


  • Automotive
  • Defence
  • Energy
  • Environment
  • Industrial
  • Infrastructure
  • Machine Tools
  • Materials Handling
  • Mobile
  • Oil and Gas
  • Power Generation
  • Process
  • Transportation
  • Water


  • Suitable for general hydraulic applications.

Features/ benefits of non-return valves:

  • The precise functioning of Parker non-return valves has been proven a million times over and stands for the reliability of this product range.
  • Combined soft and metal sealing – leak-free due to soft sealing at cone and metal-supported sealing at cone – extends the safety of the product and the entire hydraulic application.
  • The usage of Parker non-return valves is flexible due to the wide range of items.
  • For yet more applications, internal parts in stainless steel with FPM are also available.
  • Parker non-return valves are all packed against contamination, which improves the quality and reliability of these products.