CHOKE AND GATE VALVE Russian patent published in 2005 - IPC

Abstract RU 2259465 C1

FIELD: oil production industry, particularly for sealing pipelines in well-control equipment.

SUBSTANCE: valve has body with central orifice located in upper part thereof, elongated rectangular cavity, coaxial channels for liquid and annular depressions formed in seat areas located in bores of coaxial channels and pressed with resilient members to gate. Valve also has drive with handwheel, axle box, spindle passing through central orifice of upper body part and sealing member embedded in body cavity. Gate is composed of two body halves and body with grooves for receiving sealing member formed of elastic material made on side surfaces around the full perimeter thereof. The rectangular cavity is through. Cavity for sealing member receiving created in the body has conical inner surface. Lower parts of body halves are provided with threaded orifices with caps defining coaxial channels. Transversal orifice with choke is formed in lower gate part and longitudinal threaded orifice for spindle engagement is made in upper choke part.

EFFECT: extended range of valve application.

1 dwg

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RU 2 259 465 C1

Authors

Chelbin V.A.

Dates

2005-08-27Published

2004-02-24Filed