Tags: Flow Control Valves

Flow Control Valves

{0 Comments}

Flow Control Valves

Flow-control valves are used to control an actuator’s speed by metering flow. Metering is measuring or regulating the flow rate to or from an actuator. A water faucet is an example of a flow-control valve. Flow rate varies as a faucet handle is turned clockwise or counterclockwise. In a closed position, flow stops. Many flow-control …

Read More…

Pressure-compensated Flow Control Valves

{0 Comments}

Pressure-compensated Flow Control Valves

Figure 6.35 illustrates the operation of a pressure-compensated valve. The design incorporates a hydrostat which maintains a constant 1.4kg/cm2 (20 psi) pressure differential across the throttle which is an orifice, whose area can be adjusted by an external knob setting. The orifice area setting determines the flow rate to be controlled. The hydrostat is normally …

Read More…

Hydraulic Globe Valve

{0 Comments}

This is the simplest form of a flow control valve. The globe valve gets its name from the disk element ‘globe’ that presses against the valve seat to close the valve. A simplified view of a globe valve has been illustrated in Figure 6.29. The fluid flow through the valve is at right angles to …

Read More…

Hydraulic Flow Control Valves

{0 Comments}

Hydraulic Flow Control Valves

Flow control valves are used in constant-flow (fixed displacement pump) circuits to control actuator speed. The simplest type of flow control valve is a needle valve. Another name for a needle valve is a non-pressure-compensated flow control valve. Turning the manual adjustment on a needle valve causes the needle to move down into the orifice, …

Read More…
You might also likeclose