Pipe connection

Details Pipe connection Pipe connection

F - Mech Eng,Light,Heat,Weapons

16

L

285/54

F16L 19/08 (2006.01) F16L 47/04 (2006.01)

Patent

CA 1317985

ABSTRACT A connection for connecting lengths of pipe in end-to- end relation includes a cylindrical coupling element, threaded at each end to receive a threaded coupling member. Internally, the coupling element has a frustoconical surface engageable by a corresponding surface on an annular coupling ring. Internally the coupling ring has a plurality of sharp-edged annular ribs for gripping the external surface of a pipe The clamping ring has a central helical slot extending therethrough, for about four turns, and a flat end surface facing a flat locating surface on the coupling member. The slot winds in the opposite direction to that of the threads between the coupling element and the coupling member. As the coupling member is tightened into the coupling element it will engage the coupling ring to force it into sealing engagement, via the mating conical surfaces, with the pipe, and also to twist the body of the coupling ring, due to the helical slot, to improve sealing and to improve the resistance of the connection to separation. LCM:HWR

589517

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