DESCRIPTION
The S-4 u-cup is a symmetrical seal design that provides a seal which is capable of use in both rod and piston sealing applications. The sealing lips are knife trimmed to eliminate all molding flash and to provide superior low pressure sealing performance.
SEAL INFORMATION
Durometer (Shore A): 92
Temperature Range (F): -40 TO 195
Extrusion Gap at Various Pressures (in):
- 1,500 PSI: 0.024
- 3,000 PSI: 0.012
- 5,000 PSI: 0.006
Max Speed (ft/sec): 3.0
Mating Surface Roughness - Ra (µin) - DYNAMIC: 4<>16
Mating Surface Roughness - Ra (µin) - STATIC: 32 MAX
Part Number Definition (Inch): UH-(CS)(ID)(HT)S-4
Additional Part Number Definition (Inch): 2 X 2-1/2 X 3/8 = UH-25002000375S-4