U-seals, Polypaks, U-cups
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The Z-Seal™ is a squeeze type seal, combining the excellent sealability and low compression set of a resilient rubber lip with the greater anti-extrusion characteristics of a hard thermoplastic base. Under low pressure conditions, the sealing lip provides its own compressive seal force. As pressure increases, hydrostatic pressure is mechanically transmitted through the elastomeric seal element into the anti-extrusion base. The applied force then deflects radially in a controlled manner, closing the extrusion gap behind the sealing lip. Under this condition, maximum sealing effectiveness is achieved.
95A 70A Durometer | Urethane Nitrile Rubber Material | 6 in Nominal Inner Diameter | 3/8 in Cross Section | Z-Seal
UKP u-seals are designed to act as a positive sealing, low friction replacement for conventional rubber u-seals. Molded, from polyurethane, UKP u-seals provide long life and high resistance against extrusion. Low friction allows these seals, to run smoothly in a lubricated or non-lubricated cylinder. Available for bore sealing, the flexible dynamic lip provides, very low breakaway friction and steady motion.
90A Durometer | Urethane Material | 2 13/16 in Nominal Inner Diameter | 7/32 in Cross Section | U-Seal