Pipe joint

Details Pipe joint Pipe joint

F - Mech Eng,Light,Heat,Weapons

16

L

285/63

F16L 15/00 (2006.01) F16L 15/04 (2006.01) F16L 15/06 (2006.01) E21B 17/042 (2006.01)

Patent

CA 1230359

ABSTRACT OF THE DISCLOSURE A pipe joint with premium threads having both metal- to-metal and polymeric seals to block fluid leakage through the joint. A polymeric seal ring is preferably carried within an annular groove in the box end. Metal sealing surfaces, each having a different inside diameter, are provided on opposite sides of the annular groove to form metal-to-metal seals with two compatible metal sealing surfaces on the exterior of the pin member. The joint is thus characterized by two metal-to-metal seals formed on opposite sides of the annular groove to trap the seal ring therebetween. The metal-to-metal seals cooperate to prevent undesired extrusion of the seal ring.

449150

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