METHOD FOR TIGHTENING THREADED JOINTS Russian patent published in 1998 - IPC

Abstract RU 2105620 C1

FIELD: pipeline assembling in petroleum and gas industries. SUBSTANCE: intermediate tightened part is arranged between parts being joined. Intermediate part is preliminarily cooled until temperature significantly less than that of parts being joined. Then threaded joint is tightened. EFFECT: enhanced reliability of tightened threaded joint. 1 dwg

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RU 2 105 620 C1

Authors

Berman A.F.

Ostromenskaja V.A.

Dates

1998-02-27—Published

1995-11-29—Filed