MULTI-PURPOSE VALVE Russian patent published in 2008 - IPC F16K39/02 F16K47/02 F15B13/01 

FIELD: mechanics.

SUBSTANCE: invention related to hydraulic hardware and is designed to smoothly adjust working fluid for rate. The multi-purpose valve shutoff-and-governor element cylindrical guide part diameter is smaller than that of the element cylindrical sealing collar. The diameter of the aforesaid element upper stem located in the valve pot is smaller than that of the lower stem located on the valve outlet. The said diameters in the entire range of pressures in the valve outlet channel satisfy the terms of the specified set of inequalities.

EFFECT: higher reliability hermetic valve orifice size closing under abnormal conditions and higher accuracy in working fluid flow rate control over the entire valve orifice size variation range.

2 cl, 2 dwg