Series 2 - T-22A cavity, Polyurethane cartridge seal kit
Technical Features [ + ]
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.
Cartridge Installation Data [ + ]
| Cartridge Thread | 1"-14 UNS1"-14 UNS |
| Valve Installation Torque | 45 - 50 lbf ft61 - 68 Nm |
Cartridge Seal Installation Variations [ + ]
Used With [ + ]
What models can this kit be used with?
- CVEV Vented pilot-to-open check valve
- CWEA 3:1 pilot ratio, vented counterbalance valve
- CWEG 5:1 pilot ratio, vented counterbalance valve
- CWEK 1:1 pilot ratio, vented counterbalance valve
- CWEL 2:1 pilot ratio, vented counterbalance valve
- DKFP Normally closed, balanced poppet, logic element - pressure adjustable
- DKFR Normally closed, balanced poppet, logic element - vent-to-open
- DKFR8 Normally closed, balanced poppet, logic element with integral T-8A control cavity - vent-to-open
- DKFS Normally closed, balanced poppet, logic element - pilot-to-open
- DOFP Normally open, balanced poppet, logic element - pressure adjustable
- DOFR Normally open, balanced poppet, logic element - vent-to-close
- DOFR8 Normally open, balanced poppet, logic element with integral T-8A control cavity - vent-to-close
- DOFS Normally open, balanced poppet, logic element - pilot-to-close
- DPCM 2-way, pilot-operated, directional valve with drain to port 4 - normally open
- DPCN 2-way, pilot-operated, directional valve with drain to port 4 - normally closed
- DPCO 3-way, pilot-operated, directional valve with drain to port 4 (1 blocked, 2 to 3 open)
- DPCP 3-way, pilot-operated, directional valve with drain to port 4 (1 to 2 open, 3 blocked)
- DRCO 3-way, direct-acting, directional valve with drain to port 4 (1 blocked, 2 to 3 open)
- DRCR 3-way, direct-acting, directional valve with drain to port 4 (3 to 4 open, port 2 blocked)
- DVCM 2-way, vent-to-operate, directional valve with drain to port 4 and integral T-8A control cavity - normally open
- DVCN 2-way, vent-to-operate, directional valve with drain to port 4 and integral T-8A control cavity - normally closed
- DVCO 3-way, vent-to-operate, directional valve with drain to port 4 and integral T-8A control cavity (1 blocked, 2 to 3 open)
- DVCP 3-way, vent-to-operate, directional valve with drain to port 4 and integral T-8A control cavity (1 to 2 open, 3 blocked)
- FKDA 2-way, pilot-shifted, proportional throttle
- FKDB 2-way, pilot-shifted, proportional throttle with bleed down
- FKEA 2-way, pilot-shifted, proportional throttle, high capacity
- FKEB 2-way, pilot-shifted, proportional throttle with bleed down, high capacity
- FVDA Ventable, fixed-orifice, bypass/restrictive, priority flow control valve
- FVDA8 Ventable, fixed-orifice, bypass/restrictive, priority flow control valve with integral T-8A control cavity
- PSFB Direct-acting, pressure reducing/relieving valve with drain to port 4
- PSFT Direct-acting, pressure reducing/relieving main stage piloted from port 4
- PVFA Pilot-operated, pressure reducing/relieving valve with drain to port 4
- PVFA8 Pilot-operated, pressure reducing/relieving main stage with integral T-8A control cavity and drain to port 4
- PVFB Ventable, pilot-operated, pressure reducing/relieving valve
- PVFD Ventable, pilot-operated, pressure reducing/relieving valve with drilled piston orifice
- RVED Ventable, pilot-operated, balanced piston relief valve with drain to port 4
- RVED8 Ventable, pilot-operated, balanced piston relief main stage with integral T-8A control cavity and drain to port 4
- XNCA All ports blocked cavity plug
- XNOA Ports 3 and 4 or port 5 and 6 blocked, all other ports open cavity plug
Notes [ + ]
- Install back-up rings and O-rings as shown in 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.
Additional Resources [ + ]
Technical Information