FINAL-CONTROL VALVE Russian patent published in 2008 - IPC F16K3/08 F16K31/53 

FIELD: engines and pumps.

SUBSTANCE: invention relates to pipeline valves and accessories, primarily, to final-control valves designed to be use at whatever power generation plants in steam and condensate level control systems. The final-control valve incorporates a body with an inlet and outlet branch pipes, a fixed and moving section-opening plates arranged on a common shaft, the said openings allowing the working medium flowing through. The moving plate turns, driven by a driving element, relative to the fixed plate. The body is made in the form of a basic bush with an auxiliary bush attached to the former at the angle of, for example, 90°. The said auxiliary bush accommodates rotating driving element made as a shaft with a bevel pinion. The moving plate side surface has partial or complete teeth of a bevel pinion to mesh with the bevel pinion. An additional fixed plate with openings for medium to pass through and an annular ledge interacts with the moving plate, the said ledge isolates the bevel pinion teeth from the medium.

EFFECT: simpler design and manufacturability, lower friction between interacting elements.

7 cl, 3 dwg