Series 3 - T-17A cavity, EPDM, cartridge seal kit

990017014 : Series 3 - T-17A cavity, EPDM, 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.

  • EPDM seals have no limited shelf life.
  • EPDM seals are purple in color for easy stock and field identification.
Technical Data [ + ]
Series 3
Cartridge Thread 1"-14 UNS1"-14 UNS
Valve Hex Size 1 1/4 in.31,8 mm
Valve Installation Torque 150 - 160 lbf ft203 - 217 Nm
Cavity T-17A
Used With [ + ]

What models can this kit be used with?

  • CBGA 3:1 pilot ratio, standard capacity counterbalance valve
  • CBGG 4.5:1 pilot ratio, standard capacity counterbalance valve
  • CBGL 2.3:1 pilot ratio, standard capacity counterbalance valve
  • CKGB Pilot-to-open check valve with standard pilot
  • CKGD Pilot-to-open check valve with sealed pilot
  • LKHC Pilot-to-open, spring-biased closed, unbalanced poppet logic element
  • LKHCZ Pilot-to-open, spring-biased closed, unbalanced poppet logic element with position switch
  • LOHB Vent-to-open, spring-biased closed, unbalanced poppet logic element with pilot source from port 2
  • LOHC Pilot-to-close, spring-biased closed, unbalanced poppet logic element
  • LOHO Pilot-to-close, spring-biased open, unbalanced poppet logic element
  • LPHC Normally open, modulating element
  • PBHB Pilot-operated, pressure reducing valve
  • PBHB8 Pilot-operated, pressure reducing main stage with integral T-8A control cavity
  • PBHF8 Pilot-operated, pressure reducing main stage with drilled piston orifice and integral T-8A control cavity
  • PPHB Pilot-operated, pressure reducing/relieving valve
  • PRHB Direct-acting, pressure reducing/relieving valve
  • RVGA Ventable, pilot-operated, balanced piston relief valve
  • XHOB All 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.
  • 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.
Additional Resources [ + ]