Series 1 - T-11A cavity, EPDM, cartridge seal kit

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.

• EPDM seals have no limited shelf life.
• EPDM seals are purple in color for easy stock and field identification.

What models can this kit be used with?

• CACG 5:1 pilot ratio, vented counterbalance valve - atmospherically referenced
• CBBC 3:1 pilot ratio, semi-restrictive counterbalance valve
• CBBCX Fixed setting, 3:1 pilot ratio, semi-restrictive counterbalance valve
• CBBD 4.5:1 pilot ratio, semi-restrictive counterbalance valve
• CBBDX Fixed setting, 4.5:1 pilot ratio, semi-restrictive counterbalance valve
• CBCA 3:1 pilot ratio, standard capacity counterbalance valve
• CBCAX Fixed setting, 3:1 pilot ratio, standard capacity counterbalance valve
• CBCG 4.5:1 pilot ratio, standard capacity counterbalance valve
• CBCH 10:1 pilot ratio, standard capacity counterbalance valve
• CBCL 2.3:1 pilot ratio, standard capacity counterbalance valve
• CKCB Pilot-to-open check valve with standard pilot
• CKCD Pilot-to-open check valve with sealed pilot
• CODA Pilot-to-close check valve
• CODD 20:1 ratio, pilot-to-close check valve
• CSAB Single ball shuttle valve with signal at port 3
• CSAD Single ball shuttle valve with signal at port 2
• LODD Vent-to-open, spring-biased closed, unbalanced poppet logic element with pilot source from port 1 or 2
• LODD8 Vent-to-open, spring-biased closed, unbalanced poppet logic element with pilot source from port 1 or 2 and integral T-8A control cavity
• LODO Pilot-to-close, spring-biased open, unbalanced poppet logic element
• LRDC Normally closed, modulating element
• PBDB Pilot-operated, pressure reducing valve
• PBDB8 Pilot-operated, pressure reducing main stage with integral T-8A control cavity
• PPDB Pilot-operated, pressure reducing/relieving valve
• PPDB8 Pilot-operated, pressure reducing/relieving main stage with integral T-8A control cavity
• PPDL8 Pilot-operated, pressure reducing/relieving main stage with open transition and integral T-8A control cavity
• PRDB Direct-acting, pressure reducing/relieving valve
• PRDC Direct-acting, pressure reducing/relieving valve with open transition
• PRDR Direct-acting, pressure reducing valve
• RSDC Pilot-operated, balanced piston sequence valve
• RSDC8 Pilot-operated, balanced piston sequence main stage with integral T-8A control cavity
• RVCA Ventable, pilot-operated, balanced piston relief valve
• SCCA Direct-acting sequence valve with reverse flow check
• XEAA Port 2 to 3 open, port 1 blocked cavity plug
• XEOA Port 1 to 2 open, port 3 blocked cavity plug
• XEOB All ports open cavity plug

• Install back-up rings and O-rings as shown in views.
• See installation variations for models associated with alternative installation views.
• When installing continuous back-up rings, use the same technique and the same care used to install O-rings.
• When installing cartridge - be sure to torque to recommended value.
• Cartridges with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals.

• Seal Kit Installation Guidelines
• Sun's Floating Style Screw-In Cartridge (1.06 MB)
• Seals: Materials of Construction