The O-ring is the most widely used seal in the industry. It is easy to install, may be used as a double-acting seal and can seal pressures of up to 800 PSI. With pressures over 800 to 2,000 PSI , backup ring(s) should be considered for higher pressures. The o-ring is typically used as reciprocating seals, not for rotating shaft applications. Lip seals should be used for rotating shafts.
While simple in concept, the O-ring can be sophisticated in application. The information in this catalogue is intended to give a brief overview of O-ring design and selection.