High performance O-ring sealed joints

摘要

An integrated engineering approach to high performance sealing with O-rings is described. Sealing principles are explained, then used to illustrate the advantages of non-conventional geometries over handbook designs. The selection andqualification of optimal elastomer material for space shuttle applications is described, along with detection methods and rejection criteria for defects. The effects of lubrication, surface finish, squeeze, stretch and volume constraints are discussed inrelation to O-rings in a nuclear pump seal.