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Corrosion Resistant Cartridge Valves

Supplier: Custom Fluidpower

For use in harsh environments such as marine, offshore, and washdown applications.


External parts are made of stainless steel, with adjustment screws, where needed, of grade 5 titanium.

Sun's new range of Corrosion Resistant Cartridge Valves features:

  • External parts are made of AISI 316 stainless steel (EN1008 1.4401).
  • Where needed, adjustment screws are made of ASTM grade 5 titanium (Ti-6Al-4V).
  • Additionally, an anti-galling treatment is applied to all adjustment screws, and to the hex bodies of frame sizes 3 and 4.

Available functions of Corrosion Resistant Cartridge Valves:

  • Relief Valves
  • Flow Control Valves
  • Logic Elements
  • Circuit Savers
  • Counterbalance Valves
  • Sequence Valves
  • Check Valves
  • Reducing Valves
  • Pilot Operated Checks
  • Cavity Plugs
  • L, X, and C control options

Corrosion Resistant Valves have been qualified by a 1,000 hour salt spray test to ASTM B117-03.

All Corrosion Resistant Valves feature Sun's unique floating style cartridge construction, which eliminates potential cartridge binding and minimizes torque sensitivity.

The valve performance and external dimensions will be exactly as Sun's standard products. All valves fit existing Sun cavities and are rated to 5000 psi/350 bar working pressure at all ports. Internal working components are heat treated and made from carbon and alloy steels.

Sun also manufactures a Tri-Grip Handknob Kit, with plastic and stainless steel parts, that has equivalent corrosion protection. This handknob may only be purchased as a kit and is used with all Series 1, 2, 3 and 4 valves with L adjustment except counterbalance cartridges.

For further information about Corrosion Resistant Cartridge Valves visit Custom Fluidpower at
Use the IndustrySearch e-mail feature below and one of the Custom Fluidpower team will respond to your enquiry directly.

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