VALVE ACTUATION METHODS

Manually Operated DCV

Mechanically Operated DCVMechanically operated valve apply forces by using cams,wheels,rollers etc.hence these valves are subjected to wear

Pilot Operated DCV

Solenoid Operated DCV

Four-way, two-position, single solenoid, spring-return directional control valve.

• Draw hydraulic circuit for the following: Cylinder is having full stroke of 400mm.During

its forward stroke, initial 300mm movement of stroke is uncontrolled and remaining 100mm movement of stroke is controlled. Return stroke is uncontrolled.