Patent ID: 6131956
Filing Date: 2000-10-17
Classification: F16L

Abstract:
A pipe coupling, comprising:a cylindrical pipe having an end section;a sleeve-shaped fitting having first and second end faces, said end of said cylindrical pipe inserted on said fitting over one of said first and second end faces;a metal sleeve forcibly inserted over said fitting and having an axial extension encompassing a length of said fitting between said first and second end faces;a first sealing ring arranged on said metal sleeve such that a cross section of said first sealing ring is penetrated by said metal sleeve, said first sealing ring being arranged for effecting a seal between said fitting and said pipe;said metal sleeve comprising an indicator selected from the group consisting of a mark on said metal sleeve and a stop extending radially outward from said metal sleeve, said indicator arranged on said metal sleeve such that said end of said pipe overlaps said fitting by a required overlap length when said end of said pipe is aligned with said indicator; andsaid pipe and said fitting being securely connectable via a crimp when the end section of said pipe is inserted over said fitting and aligned with said indicator.