Series 4 - T-19A cavity, EPDM, cartridge seal kit

990019014 : Series 4 - T-19A 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 4
Cartridge Thread M48M48
Valve Hex Size 1 5/8 in.41,3 mm
Valve Installation Torque 350 - 375 lbf ft474 - 508 Nm
Cavity T-19A
Used With [ + ]

What models can this kit be used with?

  • CBIH 10:1 pilot ratio, standard capacity counterbalance valve
  • CKIB Pilot-to-open check valve with standard pilot
  • COJA Pilot-to-close check valve
  • LKJC Pilot-to-open, spring-biased closed, unbalanced poppet logic element
  • LOJO Pilot-to-close, spring-biased open, unbalanced poppet logic element
  • LOKC Pilot-to-close, spring-biased closed, unbalanced poppet logic element
  • LRJC Normally closed, modulating element
  • PBJB Pilot-operated, pressure reducing valve
  • PBJB8 Pilot-operated, pressure reducing main stage with integral T-8A control cavity
  • PBJF Pilot-operated, pressure reducing valve with drilled piston orifice
  • PRJR Direct-acting, pressure reducing valve
  • RVIA Ventable, pilot-operated, balanced piston relief valve
  • RVIB Normally closed modulating element valve with relief function
  • SCIA Direct-acting sequence valve with reverse flow check
  • XJCA All ports blocked cavity plug
  • XJOB 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 [ + ]