What Is a Pilot Valve?

Pilot valves are auxiliary valves used to operate control mechanisms in other valves or components.

Pilot valve

Right!

Pilot valves are auxiliary valves used to operate control mechanisms in other valves or components.

Common characteristics of pilot valves

1) A pilot control liquid bridge is formed with the fixed liquid resistance, and the main valve or the secondary valve or the variable lever is controlled according to the input signal;

2) The flow of the first-stage pilot valve is generally only about 1 liter / minute, and the maximum is 3 liter / minute. The flow rate of the secondary pilot valve should be determined according to actual needs.

3) The input signals are relatively small;

4) Can accept a variety of input methods, such as manual, electric, hydraulic, pneumatic, mechanical cam, electric ratio, etc .;

5) In the case of variable pump control, a variety of pilot valves form a modular structure, and various functions are convenient to choose;

6) The pilot valve itself is often a small size control valve, mostly a pressure control valve.