Piston Seals

PS3, 7.000 X 6.240 X 0.375 Piston Seal

10.000 X 9.124 X 0.375 Step Cut PS

The Style PSC is a double acting piston seal designed to replace o-rings, quad-rings, and T-seals with the same groove dimensions (O-ring dash number). Style 575 urethane back-up rings may be added to either or both sides of the “PSC” to accommodate wider groove widths. The PSC is made of 95A Durometer polyurethane, giving it high extrusion and abrasion resistance. The crowned sealing surface produces a positive seal from vacuum to high pressure. Hercules® Sealing Products also offers a wide base (WB) Style PSC piston seal. These wide base seals have the same characteristics of the standard PSC seals but offer a wider base, eliminating the need to use back-up rings to accommodate wider grooves. Piston diameter “I” dimensions are given for piston without wear rings.

95A; 70A Durometer | Polyurethane Material | 3 5/8 in Nominal Inner Diameter | Piston Seal

Features

• Easy assembly
• Low friction capabilities

PSO, 4 1/2” 3/8 HT Crown Piston Seal WB

This style of seal provides effective static and dynamic sealing while the groove on the sealing surface acts as a lubrication reservoir to reduce friction. Grooves on both sides prevent blow by during sudden pressure changes and a premium NBR square energizer prevents twisting. This product is molded from premium urethane which provides excellent extrusion and wear resistance.

98A Durometer | Urethane Material | 4 3/8 in Nominal Inner Diameter | Piston Seal

Features

• Easy assembly
• Low friction capabilities

6.750 X 6.232 X 0.159 TFG

7.125 X 6.607 X 0.159 TFG

The PS1400 seals offer low friction and high strength in a compact double-acting piston seal design. The PTFE seal ring, combined with a rubber energizer, assures positive contact with the dynamic surface. The PS1400 is designed to fit ANSI/B93.32-1973 groove standards. Piston diameter “I” dimensions are given for pistons without wear rings.

15% Glass Filled PTFE Material | 6.982 in Nominal Inner Diameter | Piston Seal

Features

• Easy assembly
• Low friction capabilities

8.750 X 8.232 X 0.159 TFG

9.250 X 8.732 X 0.159 TFG