Sun offers replacement seal kits for all cartridge models. These kits include all of the external seals on the cartridge along with installation instructions. Seal kits are available in Buna-N and Viton for all models, along with EPDM and polyurethane for many models. Please note: Converting the external seals from one material to another does not ensure fluid compatibility with that material due to the existence of internal seals within the cartridge.

• The shelf life for this cartridge seal kit is ten years from date of purchase. This date will be printed on the kit packaging.
• Polyurethane seals have a higher tensile strength, are more abrasion/extrusion resistant, and are well suited for high cycle and high pressure applications.
• The Series 1, two port cavity comes in two versions: the T-10A and the T-13A. The T-10A cavity is typically used in relief applications which require larger port areas, hence a deeper cavity. The T-13A cavity is typically used in flow control applications and utilizes a smaller port area. Since both cavities are Series 1, two port, they share common seal kits, but exclude the possibility of cartridge interchangeability between the two functions.

What models can this kit be used with?

• CDAA Back-to-back check/shuttle valve with signal external
• CDAC Back-to-back check/shuttle valve with signal at port 2
• CNCC Fixed-orifice, non-pressure compensated, flow control valve with reverse flow check
• CNDC Free flow nose to side check valve with bypass orifice
• CSAA Single ball shuttle valve with signal external
• CSAC Single ball shuttle valve with signal at port 2
• CXCD Free flow side to nose check valve
• CXDA Free flow nose to side check valve
• FCCB Fixed-orifice pressure compensated flow control valve with reverse flow check
• FDBA Fully adjustable pressure compensated flow control valve with reverse flow check
• FLDA Filter
• FQCA Fixed-orifice, flow fuse valve
• FXCA Fixed-orifice, pressure compensated flow control valve
• NCCB Fully adjustable needle valve with reverse flow check
• NCCC Fully adjustable needle valve with reverse flow check
• NCCD Fully adjustable needle valve with reverse flow check
• NFCC Fully adjustable needle valve
• NFCD Fully adjustable needle valve
• RBAC Direct-acting relief valve - pilot capacity
• RPEC Pilot-operated, balanced piston relief valve
• RPEC8 Pilot-operated, balanced piston relief main stage with integral T-8A control cavity
• RPEE Fast-acting, pilot-operated, balanced piston relief valve
• RQEB Kick-down, pilot-operated, balanced piston relief valve
• RVCK FLeX Series 2-stage, solenoid-operated adjustable relief valve, normally vented
• RVCL FLeX Series 2-stage, solenoid-operated adjustable relief valve, energize to vent
• RVCM FLeX Series 2-stage, solenoid-operated adjustable relief valve, energize to block
• RVCN FLeX Series 2-stage, solenoid-operated adjustable relief valve, normally blocked
• SXCB Atmospherically referenced, direct-acting sequence valve without reverse flow check
• XFAA T-10A cavity to T-8A cavity converter
• XFAB T-10A cavity to T-8A cavity converter with filter screen
• XFCA All ports blocked cavity plug
• XFCAE Port 1 to external port, port 2 blocked cavity plug
• XFOA All ports open cavity plug
• XGAA T-13A cavity to T-8A cavity converter
• XGCA All ports blocked cavity plug
• XGCAE Port 1 to external port, port 2 blocked cavity plug
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