DESCRIPTION
The S-F1 is a symmetrical seal that is comprised of a rubber header that controls pre-load across the angled rubber lips to ensure excellent low pressure sealing. This header is molded to a rubberized fabric base to give strength and durability.
The seal becomes more effective as the pressure increases and the rubberized fabric deforms to the housing to increase the seal contact areal. The surface of the fabric has pockets which retain lubrication to reduce friction and wear.
This seal should be installed in split housings and split pistons. Some sizes can be installed in standard grooved housings if assembled with care.
SEAL INFORMATION
Material Type (Primary Seal): NITRILE
Material Type (Base): FABRIC-REINFORCED NITRILE
Durometer (Shore A): 80
Temperature Range (F): -22 TO 212
Max Pressure (psi): 4500
Extrusion Gap at Various Pressures (in):
- 1,500 PSI: 0.018
- 2,400 PSI: 0.016
- 3,750 PSI: 0.012
- 4,500 PSI: 0.010
Max Speed (ft/sec): 1.5
Mating Surface Roughness - Ra (µin) - DYNAMIC: 4<>16
Mating Surface Roughness - Ra (µin) - STATIC: 63 MAX
Part Number Definition (Inch): UH-(CS)(ID)(HT)S-F1
Additional Part Number Definition (Inch): 2 X 2-1/2 X 3/8 = UH-25002000375S-F1