Hytrel U-Seal Back-Up Ring | 55D Hytrel Hydraulic U-Cup Back-Up Ring | HydraPak Seals, Inc
Notice: 10% tariff fee now in effect.

UB25-4.00P

UB-P Hytrel U-Seal Back-Up Ring, 4 X 4-1/2 X 1/16

Part #:
UB25-4.00P
Min. Order Qty: 1

Brand: HPSI

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HPSI

Hytrel U-Seal Back-Up Rings are made from 55 Shore D Hytrel® and provide high strength and abrasion resistance for demanding, high-pressure applications where seal extrusion is a concern. Designed as back-up rings for U-seals, they can be used with NU homogeneous nitrile U-cups or O-rings when required. Hytrel® provides a durable alternative to urethane and, in some applications, PTFE back-up rings while fitting the same groove dimensions.

Construction      :      Solid
Inside Diameter      :      4 in
Material      :      55D Hytrel
Outside Diameter      :      4-1/2 in
Part Number      :      (Prefix)(C/S)-(ID)(Suffix)
Temperature Range      :      -65° to 275°F
Thickness      :      1/16 in
  • 55 Shore D Hytrel® construction provides high strength
  • Excellent abrasion resistance supports demanding applications
  • Designed to help prevent U-seal extrusion in high-pressure applications
  • Suitable for use with NU homogeneous nitrile U-cups
  • Can also be used with O-rings when required
  • Durable alternative to urethane back-up rings
  • Can serve as an alternative to PTFE back-up rings in some applications
  • Fits the same groove dimensions as applicable replacement back-up rings
  • S suffix designates a split back-up

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