GATE VALVE Russian patent published in 2021 - IPC F16K3/02 

FIELD: shut-off pipe armature.

SUBSTANCE: gate valve contains a gate with a through hole in the lower part, a drive, seats and a case with an axial channel and a cup. From the lower part of the gate wall, next to its ends, threaded samples are made by one. A ball seat, made in the form of a cylindrical ring with chamfers at the ends of the sidewall of its hole, is installed hermetically in the through hole of the gate over one threaded sample. In the through hole of the gate, a guide bushing for the ball is installed, made of a profile pipe, which rests on the near end of the ball seat with one end, and on the washer located next to the other threaded sample of the gate with the other end. Inside the profile pipe, a spring-loaded ball is installed, which is hermetically adjacent to the conical wall of the near chamfer of the cylindrical seat ring. A bolt with a tip is wrapped in the free threaded sample of the gate.

EFFECT: invention is aimed at expanding the technical and technological capabilities by giving the gate valve the function of a check valve, reducing the time for regulating the movement of the working medium when changing its direction.

1 cl, 3 dwg