GATE VALVE Russian patent published in 2019 - IPC F16K3/06 F16K31/53 

FIELD: machine building.

SUBSTANCE: invention relates to the field of petroleum and chemical machine building, in particular, to the pipeline valves. Valve contains two half-bodies (1, 2). Between them the gate with the toothed sector (3) is placed with the possibility of rotation in its plane, equipped with sealing elements (4) and interacting with the drive shaft-gear (5). Gate (3) is made in the form of the oval plate with located in its middle part external teeth, and external (a) and internal (b) cylindrical bearing surfaces, and its width is for 20–40 % larger than the through-hole diameter. Semi-bodies (1) and (2) walls are made with corresponding to the gate (3) support surfaces cylindrical surfaces.

EFFECT: gate (3) implementation in the form of the oval plate with a width slightly larger than thee through-hole diameter, reduces the valve size and weight as a whole.

1 cl, 3 dwg