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2 147 097

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C1

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IPC

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Application

99115006/06, 1999-07-19

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Start date

1999-07-19

(22)

Actual filing date

1999-07-19

(45)

Published

2000-03-27

(72)

Inventor

Shmelev V.A.Zav'Jalov M.P.Nasyrov A.M.Birjukov S.D.Bagirov R.R.-O.Prosvirin A.A.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

METHOD OF CONNECTION OF PIPE LINES TRANSPORTING AGGRESSIVE FLUIDS Russian patent published in 2000 - IPC

Abstract RU 2147097 C1

FIELD: pipe line transport; erection of pipe line provided with internal protective lining. SUBSTANCE: part of metal is removed from ends of metal pipes. Grooves made on internal surface of coupling where rings made from non-ferrous alloy are inserted. Adjacent ends of lining are welded together and space between ends of pipes is filled with sealant. Then pipes are connected by means of external coupling which is crimped afterwards. EFFECT: increased working pressure in pipe line to maximum level. 1 dwg

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RU 2 147 097 C1

Authors

Shmelev V.A.

Zav'Jalov M.P.

Nasyrov A.M.

Birjukov S.D.

Bagirov R.R.-O.

Prosvirin A.A.

Dates

2000-03-27—Published

1999-07-19—Filed

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