PROCEDURE FOR CONNECTION OF STEEL PIPES WITH INTERNAL POLYMER COATING Russian patent published in 2011 - IPC F16L13/00 

Abstract RU 2430290 C2

FIELD: machine building.

SUBSTANCE: space between coupling and external surface of pipe is filled with resin with corundum filler. Pipes are connected by coupling run-in until intrusion of corundum into a body of coupling reaches depth of 1.5 mm. Also, gaps in a butt between pipe ends are filled with resin forming a sealed joint.

EFFECT: increased reliability of sealing.

1 dwg

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RU 2 430 290 C2

Authors

Chakheev Sergej Leonidovich

Chakheev Andrej Leonidovich

Permjakov Nikolaj Grigor'Evich

Dates

2011-09-27Published

2007-04-12Filed