Piston Seals
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Specifically designed as piston seals, these u-seals are engineered to seal on their outside diameter. They offer extended, service life and maximum reliability in piston sealing.
92A Durometer | Urethane Material | 4 1/2 in Nominal Inner Diameter | 1/4 in Cross Section | U-Seal
A heavy duty double-acting assembly, the capped piston T-seal exhibits excellent sealability, extrusion resistance, and wearability. T-seals with “BR” suffix utilize a Bronze Filled PTFE cap instead of the standard Glass Filled PTFE cap.
PTFE; Nylon; Rubber Material | 1.626 in Nominal Inner Diameter | Capped Piston T-Seal
Features
- Glass-filled PTFE cap, nylon back-up, rubber energizer
Caterpillar® part numbers are used as a reference only. We do not imply that these parts are original equipment parts.
4 1/4 in Nominal Inner Diameter | Piston Seal
Molded from filled PTFE and machined to close tolerances, these seals feature low friction and excellent wear characteristics. Nitrile rings are used for energizers.
70A Durometer | PTFE Material | 99.5 MM Nominal Inner Diameter | Piston Seal
Features
- Easy assembly
- Low friction capabilities
Molded from tough, wear resistant 55D polyester, these seals are for light to medium duty applications and are interchangeable with the style MPS seals of the same dimensions. Nitrile rings are used for energizers.
55D; 70A Durometer | Polyester Material | 59 MM Nominal Inner Diameter | Piston Seal
Features
- Easy assembly
- Low friction capabilities
The MPSU300 is a compact, double-acting piston seal consisting of two parts: a urethane sealing ring with a pronounced sealing edge and a rectangular nitrile energizer to prevent the seal from twisting within the groove. It also has low friction and smooth operating movement even at low linear velocities.
94A; 70/80A Durometer | Urethane Material | 74.5 MM Nominal Inner Diameter | Piston Seal
Features
- Easy assembly
- Low friction capabilities
The PS1850-V piston seal can be used interchangeably with the PS1800 style piston seal. This seal provides improved heat resistance for demanding applications. Piston diameter “I” dimensions are given for pistons without wear rings.
15% Glass Filled PTFE Material | 3 7/16 in Nominal Inner Diameter | Piston Seal
Features
- Easy assembly
- Low friction capabilities
Piston diameter “I” dimensions are given for pistons without wear rings.
Glass Filled Nylon Material | 4.442 in Nominal Inner Diameter | Piston Seal
Features
- Easy assembly
- Low friction capabilities
The MPSU300 is a compact, double-acting piston seal consisting of two parts: a urethane sealing ring with a pronounced sealing edge and a rectangular nitrile energizer to prevent the seal from twisting within the groove. It also has low friction and smooth operating movement even at low linear velocities.
94A; 70/80A Durometer | Urethane Material | 59.5 MM Nominal Inner Diameter | Piston Seal
Features
- Easy assembly
- Low friction capabilities
The PS1400 seals offer low friction and high strength in a compact double-acting piston seal design. The PTFE seal ring, combined with a rubber energizer, assures positive contact with the dynamic surface. The PS1400 is designed to fit ANSI/B93.32-1973 groove standards. Piston diameter “I” dimensions are given for pistons without wear rings.
15% Glass Filled PTFE Material | 1.483 in Nominal Inner Diameter | Piston Seal
Features
- Easy assembly
- Low friction capabilities
