VALVE SEAT WITH FORCED POSITION FIXATION FOR USE WITH CONTROL UNITS FOR FLUID MEDIUM FLOW RATE Russian patent published in 2014 - IPC G05D16/06 

FIELD: machine building.

SUBSTANCE: present invention on the whole is related to the units for fluid medium flow rate control and, in particular, to a valve seat with forced position fixation to be used with fluid medium flow rate control units. The proposed group of inventions comprises a valve seat with forced position fixation to be used with a fluid medium flow rate control unit, and a fluid medium flow regulator. The valve seat comprises a metal ring and an elastic ring connected to the metal ring and having a sealing surface for leakproof interaction with a working element regulating the flow, and fluid medium flow rate control units, at least part of the external elastic ring surface includes a circular protrusion for leakproof interaction with a circular groove in the case of the fluid medium flow rate control unit, the internal elastic ring surface is connected to the external metal ring surface. The fluid medium flow regulator comprises a case having an arm formed by an annular cavity in the case between an inlet hole and an outlet hole, and the above valve seat set inside the case.

EFFECT: improved performance characteristics of a fluid medium flow regulator and provision for forced position fixation in essence to prevent shift of the valve seat in respect to the case of the fluid medium flow rate control unit.

16 cl, 3 dwg