PIPES SHUTOFF QUICK COUPLING Russian patent published in 2010 - IPC F16L37/00 

FIELD: machine building.

SUBSTANCE: shutoff quick coupling consists of enclosed and enclosing parts of connections. End surfaces of elements of each of connection parts in inoperative position solid end surfaces and in each of parts there are co-axial located connected elements of both pipelines. In enveloping part there are located two immovable elements which are pushers and two movable elements of gate valves which interacts during jointing with immovable elements of gate valves and with pushers located in enveloping part of connection.

EFFECT: invention provides increasing of performance at joining and disconnection of connection ensured by simultaneous connection and disconnection of two pipelines of hydraulic system.

2 cl, 3 dwg