Bi Directional Flow Control Valve Symbol

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Bi directional flow control valve symbol.

The ports are an inlet outlet and tank exhaust. This will always enhance the flow of fluid much easier when compared to a w way directional control valves. This means they have two flow pipe connections and can switch into two different positions. Fluid free flows in one direction but has controlled flow in the opposite direction.

The symbol in figure 8 64 shows how to represent this in a symbol. A 3 way valve does not only supply an actuator with the fluid but also allows fluid to make a return from it. The top symbol shows a manually activated valve that is pushed over against a spring. The double arrow in the left box shows that the flow may pass in both directions.

The only way to change flow is to change the orifice size. Symbol type flow gpm size sae data sheet model data cad step igs this unit is a screw in cartridge type non compensated adjustable bi directional needle flow control valve. Symbol model code flow l min pressure bar cavity 3d model link. A common use for a drilled check valve is as a fixed tamper proof flow control valve.

3 way directional control valves the 3 way valve often has 3 working ports. The valves shown are all two way two position directional valves. Symbol for closed port.