COCK HYDRAULIC CONTROL VALVE

摘要

hydraulic-pulse engineering. SUBSTANCE: plug of hydraulic control valve is tightened in seat by means of rings positioned in grooves of plug cylindrical surface and by pressure rollers installed in longitudinal seats of body. Use is also made of coaxial turning hydraulic prime mover and clamping device which determine open and closed positions of hydraulic control valve. EFFECT: enhanced reliability and fast response. 3 cl, 5 dwg