Tag Archives for directional control valve
Open Center Sliding Spool Directional Control Valve
In an open-center sliding spool directional control valve, the spool is designed to pass all flows on all its passages when the valve is centered. In some types, the fluid from hydraulic pump is passed to the reservoir through other … Continue reading
Closed Center Sliding Spool Directional Control Valve
In a closed-center sliding spool directional control valve, all the flow passages are blocked when the piston is centered in its body. The closed-center valve is applied if a single hydraulic source (pump/accumulator) performs multiple operation and the system is … Continue reading
Manual Operated Directional Control Valve
Manually operated directional control valve is used to control the flow direction by manual hand force. The spool can be shifted by applying force at the hand lever. If the valve is a spring offset model, the spring thrust will … Continue reading
Hydraulic pilot operated four-way directional control valve
Hydraulic pilot operated four-way valve is used to control the hydraulic fluid flow direction by using a pilot pressure. In the figure above, if the pilot pressure on either spool side is pressurized by a hydraulic fluid pressure then the … Continue reading