Pipe proof test fixture

摘要

An end closure for large diameter thin wall pipe employs separate opposed outside contractible and inside expansible assemblies to grip the pipe. A separate yoke member is carried by a closure member of the inside assembly and in turn carries means to actuate a seal between the closure member and the pipe. The external contractible member assembly has a sleeve-like clamp which extends longitudinally beyond the area of the internal expansible member and seal and confines the pipe beyond said areas.