UL156-1.187-156 High Performance Loaded U-Cup


Qty Discounts Prices
  • Model: UL156-1.187-156
    Dimensions: 1.188" ID X 1.500" OD X 0.156" CS
  • 0 in Stock
Add to Cart:

1-3/16" ID X 1-1/2" OD X 5/32" W X 5/32"H

High Performance Loaded U-Seal (NuPac - Loaded U-Cups - PolyPaks®)

Loaded U-cup utilizing a polyurethane shell energized by a high specification resilient O-Ring.

At zero or low pressure, the O-Ring helps to increase the sealing force preventing any bypass. As pressure rises the sealing force increases and the O-Ring ensures complete lip actuation under most conditions.

The symmetry of the seal allows it to be used universally on both rod and piston applications and its flexibility enables easy installation. Ideally suited for single acting applications, they can also be fitted back to back for use in double acting applications.


  • Flexible for easy installation
  • Excellent resistance to abrasion
  • Positive lip actuation
  • Knife trimmed precision sealing lips
  • Compact housing
  • Wide range of size

Seal Materials:

Polyurethane Body - Buna-N O-Ring Energizer

Operating conditions:

Maximum Speed: 1.5 ft/sec (0.5 m/sec)
Temperature Range: -40°F +230°F (-40°C +110°C)
Maximum Pressure: 5,000 p.s.i. (350bar)

Copyright © 2024 The O-Ring Store, LLC
1847 Wilma Dr, Clarkston WA 99403
Phone 208-413-6377 - Fax 208-413-6719