BALL VALVE OF COMPOSITE MATERIALS AND METHOD FOR ITS MANUFACTURE Russian patent published in 2017 - IPC F16K5/06 F16K27/06 

FIELD: machine engineering.

SUBSTANCE: ball valve made of composite materials contains an integral body with inlet and outlet branch pipes, a rotary ball plug and a passage opening mounted on two supports for fluid, sealing elements contacting the plug surface near the edges of the passage opening. The sealing elements are placed in prefabricated cages and included together with them in the integral casing. The sealing elements are configured to be pressed to the ball plug surface under pressure greater than the pressure of the fluid in the pipeline during transportation and removal when the plug is turned and pressed again after the turn is completed. There is a method for manufacturing a valve by winding reinforced composite material on a mandrel of all installed parts comprising the valve.

EFFECT: simplification of the design and manufacturing technology of the valve by eliminating assembly operations and mechanisation of the final manufacturing process.

2 cl, 4 dwg