CONTROL VALVE Russian patent published in 2016 - IPC F16K11/87 F16K27/06 F16K47/04 

FIELD: oil industry.

SUBSTANCE: invention relates to oil and gas industry and is intended for use in main gas lines at high pressure drops of medium, at fields, in power engineering. Control valve comprises body 1 with three branch pipes, two of which are located on one axis on opposite sides, are inlet 2 and connected to pipeline 3, and third 4 is at bottom and is output. Area of passage of latter is not less than sum of areas of passages of inlet branch pipes 2. Gate 5 consists in form of ball with through horizontal passage 6 and hole 7 from below by its center. Gate 5 is equipped with spindle 8 to drive and two spring-loaded seats 9. From above and below it is arranged in supports 10. Lower support 10 is made with vertical channel by passage area, equal to gate 5 lower hole 7 passage area. Inside whole gate 5 horizontal passage 6 and channel in its lower support flow stabilizer 11 is arranged in form of n vertical parallel plates with through holes.

EFFECT: invention is aimed at reduction of torque of gate by its unloading from pressure drop, improved quality of control, and reduced dimensions and drive power.

1 cl, 2 dwg