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."

Standard Cartridges

The standard Sun cartridge body is constructed of steel.

Internal cartridge components are constructed of carbon steel leaded alloys.

The cartridge body is constructed of lean duplex stainless steel.

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

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

Internal cartridge components are constructed of carbon steel leaded alloys.

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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