SHUTOFF DEVICE FOR PIPELINE BLOCKING Russian patent published in 2005 - IPC

FIELD: pipeline fittings, particularly gate valves or sliding valves.

SUBSTANCE: shutoff device has body, which consists of conical and cylindrical parts with coaxial inlet and outlet pipes. Shutoff body made as tore filled with compressed medium is arranged inside the body. The device additionally has connection pipes, two-way slide and adjustable throttle. The cone base is turned to inlet and outlet pipes. Body ends are connected to inlet and outlet pipes through connection pipes so that the connection pipes may be closed with two-way slide. Adjustable throttle is installed in connection pipe extending from conical body part. Connection pipe beginning from two-way slide and directed to branch pipe is fit into branch pipe and connection pipe end is turned in liquid flow direction.

EFFECT: possibility of shutoff device operation mechanization due to use of power and pressure of product to be transported via the pipeline.

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