Cartridges: Materials of Construction


Sun Hydraulics' cartridge valves are available in a variety of materials and coatings to serve your needs and environmental conditions.

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For additional details on other Sun product materials, see our "Manifolds: Materials of Construction" and "Seals: Materials of Construction."

CBCA

Standard Cartridges

The standard Sun cartridge body is constructed of steel.

Internal cartridge components are constructed of carbon steel leaded alloys.

CBCA

Corrosion-Resistant Stainless Steel Cartridges
(****-***/AP)

The cartridge body is constructed of lean duplex stainless steel.

Adjustment screws are constructed of one or more of the following:

  • Titanium 
  • Silicon brass 

Jam nuts, stop rings, and assorted controls are constructed of stainless steel.

Internal cartridge components are constructed of carbon steel leaded alloys.

CBCA

Corrosion-Resistant Zinc-Nickel Plated Cartridges
(****-***/LH)

Cartridge body, adjustment screws, jam nuts, and stop rings include the following:

  • High-performance corrosion protection plating per SAE AMS 2417
  • Salt fog protection of 1000 hours minimum to red rust over all external surfaces exposed to atmosphere (Salt fog test per ASTM B117 or ISO 9227 5% saline).
  • Light metal gray plating color (may have yellow to purple hue and may vary from cartridge to cartridge).

Internal cartridge components are constructed of carbon steel leaded alloys.

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