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2 030 664

(13)

C1

(51)

IPC

(21) (22)

Application

5041950/29, 1992-05-14

(22)

Actual filing date

1992-05-14

(45)

Published

1995-03-10

(72)

Inventor

Zakirov I.V.

(73)

Holder

Institut Ehksperimental'Noj Mineralogii Ran

SEALING UNIT FOR HIGH-TEMPERATURE VALVE Russian patent published in 1995 - IPC

Abstract RU 2030664 C1

FIELD: valving. SUBSTANCE: needle is coaxially mounted inside a housing provided with a pressing member. The needle is sealed by a gasket containing journal box and assemble of sealing rings. One of the rings is made of graphite. The difference between the radius of the graphite ring and the radius of the needle is equal to the width of the graphite ring and is 0.25-0.5 of needle radius. EFFECT: improved sealing. 1 dwg

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RU 2 030 664 C1

Authors

Zakirov I.V.

Dates

1995-03-10—Published

1992-05-14—Filed

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