Pipe repair coupling

摘要: There is disclosed a pipe repair coupling including barrel formed centrally with hollow cylinder for telescopical receipt therein of piston. The surrounded by protective sleeve and at one extremity first fitting the opposite neck portion. piston in its exterior plurality annular O-ring grooves which receive O-rings dynamic sealing engagement interior wall barrel. Telescoped within area tubular stiffener supports walls such against radial inward collapse. Consequently, may be telescoped into to facilitate connection an end aligned axially second spaced therefrom. Such then easily connected on free