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2 204 755

(13)

(51)

IPC

(21) (22)

Application

2001134964/06, 2001-12-26

(24)

Start date

2001-12-26

(22)

Actual filing date

2001-12-26

(45)

Published

2003-05-20

(72)

Inventor

Andreev A.P.Burmistrov B.V.Gusev I.A.Ermolaev V.V.

(73)

Holder

Andreev Aleksandr PavlovichBurmistrov Boris VladimirovichGusev Igor' AleksandrovichErmolaev Vladimir Viktorovich

SHUT-OFF GATE VALVE Russian patent published in 2003 - IPC

Abstract RU 2204755 C1

FIELD: manufacture of fittings; shutting- off working media in various industries. SUBSTANCE: proposed shut- off gate valve has body with welded seats and wedge-lock made in form of two self-setting plates with external sealing surfaces. Wedge lock is connected with spindle performing translational motion. Spacer ring is mounted between plates in grooves. Center of inner diameter of spacer ring is shifted towards bottom of body relative to center of diameter of through hole found in seat. Ratio of inner diameter of spacer ring to diameter of through hole ranges from 0.7 to 0.98. EFFECT: enhanced tightness of gate valve. 4 cl, 1 dwg

Similar patents RU2204755C1

Title	Year	Author	Number
DISTANCE PIECE FOR SHUT-OFF GATE	2001	Andreev A.P. Burmistrov B.V. Gusev I.A. Ermolaev V.V.	RU2204756C1
SHUT-OFF THROTTLING VALVE AND ITS BODY	2001	Andreev A.P. Burmistrov B.V. Gusev I.A. Ermolaev V.V.	RU2206015C1
THROTTLING ADJUSTING VALVE AND ITS BODY	2001	Andreev A.P. Burmistrov B.V. Gusev I.A. Ermolaev V.V.	RU2206014C1
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SHUT OFF VALVE	2000	Andreev A.P. Burmistrov B.V. Gusev I.A. Ermolaev V.V.	RU2185556C2
CONTROL VALVE	2000	Andreev A.P. Burmistrov B.V. Gusev I.A. Ermolaev V.V.	RU2160862C1
COOLING PLANT	2000	Andreev A.P. Burmistrov B.V. Gusev I.A. Ermolaev V.V.	RU2160867C1
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SAFETY UNIT (VERSIONS)	2004	Andreev Aleksandr Pavlovich Blagov Ehduard Evgen'Evich Brintsov Vasilij Nikolaevich Burmistrov Boris Vladimirovich Gusev Igor' Aleksandrovich Ermolaev Vladimir Viktorovich Povaljaev Andrej Mikhajlovich	RU2276301C2

RU 2 204 755 C1

Authors

Andreev A.P.

Burmistrov B.V.

Gusev I.A.

Ermolaev V.V.

Dates

2003-05-20—Published

2001-12-26—Filed