Method for pretreating the connecting elements of a...

Details Method for pretreating the connecting elements of a... Method for pretreating the connecting elements of a...

F - Mech Eng,Light,Heat,Weapons

16

L

285/63

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

Patent

CA 2014764

ABSTRACT OF THE DISCLOSURE Method for pretreating the connecting elements of a gas-tight pipe connection of the type including an internally threaded coupling for being screwed to externally threaded spigots at pipe ends to be joined, a metallic sealing seat, and an abutment shoulder. Only the coupling, on its innerside, is provided with a covering while leaving the spigots bare. After cleaning threaded and sealing regions of the connecting elements but before screwing together such connecting elements, a lubricant is applied to the cleaned threaded and sealing regions.

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