Graphical symbol for pilot-operated four-way valve
Tag: Pilot Operated
Pilot-operated direction control valve
The cylinder in the system in Figure 4.22 should, theoretically, hold position when the control valve is in its centre, off, position. In practice, the…
This type of valve is used to control the flow direction by using a pilot pressure. Figure 5-28, shows two units in which the spool…
Four-way, directional-control valves are used to control the direction of fluid flow in a hydraulic circuit, which controls the direction of movement of a work…
Check valves are the most commonly used in fluid-powered systems. They allow flow in one direction and prevent flow in the other direction. They may…
The pilot-operated check valve is shown in Fig. 7.11. For flow in the forward direction, this valve operates just like a normal check valve. Pilot…
A pilot-operated relief valve has the same function as a direct-acting relief valve; however, it has a different pressure vs. flow curve. The performance curves…