FIELD: anti-cavitation means.
SUBSTANCE: control valve contains a valve case, a valve seat and a closing element of the valve, made with the possibility of moving to the closed position and the open position. An anti-cavitation element is proposed, which contains a circumferential wall, an annular flange located on the circumferential wall, and a set of hollow tubes, including the first tube, the second tube and the third tube. Each tube has a flow axis extending from the open first end to the open second end, and an inner surface defining the flow cross-section and having a cross-section shape perpendicular to the flow axis. The second end of tubes is located between the closing element of the valve and the first ends of tubes along their respective flow axes, when the closing element of the valve is closed. The first tube, the second tube and the third tube are made in the form of a monolithic, one-piece structure.
EFFECT: invention is aimed at reducing or eliminating cavitation.
28 cl, 15 dwg
