GAS-DISTRIBUTING VALVE Russian patent published in 2013 - IPC F16K5/04 F16K17/16 

FIELD: machine building.

SUBSTANCE: gas distributing valve comprises a damper which can rotate around the axis in the body, is connected to a shaft and is contacting with a seat having a passage opening. The damper is capable of radial shift in relation to the shaft and the seat. A sealing plug is set in the seat behind its passage opening. The plug is fitted by a breakthrough annular incision. A press unit is placed between the damper and the sealing plug. The unit consists of a spring-loaded stem which can travel in a cup. The side walls of the stem which is in contact with the damper are conjugated with the side walls of the seat passage opening. The cup end wall is conjugated with the sealing plug and in the contact spot the cup is made equidistantly to the plug surface, coaxially to the seat passage opening. The cup end wall is placed inside the generating circle of the annular incision.

EFFECT: improving valve performance reliability by preventing destruction of control pair during transportation.