WEDGE VALVE GATE UNIT Russian patent published in 2014 - IPC F16K3/02 F16K3/12 F16K11/22 F16K15/02 

FIELD: machine building.

SUBSTANCE: wedge valve gate unit comprises a casing with inlet and outlet branch pipes turned to each other by bores, where seats sealed hermetically and fixed in respect to the casing are set, are interacting with the responsive sealing fields of disks which are controlled by ridges of curved shape which are installed in the hole of a shell connected to a spindle. The hole in the shell on the outlet branch pipe side is blind, the shell on the inlet branch pipe side is with continuous curvilinear surface interacting with the responsive outer surface of a pivoted lever at closing of the gate. A niche is provided on the inner side of the lever and a disk is movably and rotationally installed in the niche.

EFFECT: creation of full passage gate unit of a wedge valve with two functions, namely, blocking of conveyed medium flow and prevention of return flow of the conveyed medium at the open wedge valve gate unit.

3 cl, 3 dwg