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Model: 990431014
Series 1 - T-31A cavity, EPDM, cartridge seal kit
Cavity: T-31A
See CAD Files tab below to request images.
Technical specifications
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?
- DNCA 4-way, 2-position, solenoid-operated directional spool valve with closed transition
- DNDA 4-way, 2-position, solenoid-operated directional spool valve
- DNDAS 4-way, 2-position, soft shift, solenoid-operated directional spool valve
- DNDC 4-way, 3-position, solenoid-operated directional spool valve
- DNDM 4-way, manually operated, directional spool valve
- 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.
Technical Tips
Technical Information
- PartDescriptionQuantityView
- 500-701-014O-Ring2D,E
- 500-701-015O-Ring1C
- 500-701-017O-Ring1B
- 500-701-116O-Ring1A
- 525-006-014Backup Ring4D,E
- 525-006-015Backup Ring2C
- 525-006-016Backup Ring1B