Cap seals offer a low friction seal for use in dynamic reciprocating applications. A plastic cap supplies a seal against the dynamic sealing face, an O-ring is used to energise the plastic cap and operates in a static environment. The O-ring uses the system pressure to maximise the sealing force acting on the cap. The cap also prevents extrusion of the O-ring energiser when used in high pressure applications.
Visit the Precision Polymer Engineering Ltd website for more information on Cap Seals