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RU

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2 097 635

(13)

C1

(51)

IPC

(21) (22)

Application

94044084/06, 1994-12-15

(22)

Actual filing date

1994-12-15

(45)

Published

1997-11-27

(72)

Inventor

Khalaev G.G.Pichugin N.A.

(73)

Holder

Aktsionernoe Obshchestvo Zakrytogo Tipa Nauchno-Proizvodstvennoe Predprijatie

PLUG VALVE Russian patent published in 1997 - IPC

Abstract RU 2097635 C1

FIELD: mechanical engineering. SUBSTANCE: invention relates to plug valve appropriate for petroleum production and petroleum processing industries when designing production trebles and specialized technics as valves for high-pressure hydraulic systems. The valve has conical plug with quick-removal insert. In the passage of the later, restrictor and back valve are consecutively disposed in direction of liquid flow. EFFECT: improved structure of valve. 2 dwg

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RU 2 097 635 C1

Authors

Khalaev G.G.

Pichugin N.A.

Dates

1997-11-27—Published

1994-12-15—Filed

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