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

What are the characteristics of the pilot valve, briefly introduce:

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 input signals are relatively small;

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

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

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

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