Two part clamp union for fluid pipe sections has interface with locating key that cuts into O-ring seal

摘要

A pipe clamp union fitting and seal consists of first (1) and second (2) flanges linked at an interface (11, 21) held together by a circular array of screw bolts (12, 22). The first flange interface (11) has a locating key (14) that engages with and penetrates a radial seal (18).