Products > Fastening, Operating, Damping > Piston seal > A.W. Chesterton Company

Piston seal
A.W. Chesterton Company

Chesterton's 7K SuperCup are piston cups for Hydraulic and Pneumatic* applications. Super Polymer 7K's are supplied with a supporting metallic disc, molded into the base. The resulting rigid base provides a stable, non-distorting superior seal. Chesterton offers a Double Acting 7K which performs best in compact design situations.
Long life cup will not swell, deform, drag or bind.
Positive, flared lip design optimizes sealing forces.
Excellent memory retains lip flare. Ideal replacement for traditional materials generally used on these applications.
AWC 800 95A Super Polymer is the ideal material for the majority of applications.
Other materials are available to meet specific requirements.