The pilot valve is a pilot valve used to manipulate control mechanisms in other valves or components. The common features of the pilot valve: 1) Pilot control liquid bridge with fixed liquid resistance, according to the input signal to control the main valve or secondary valve or variable bar; 2) The flow of the first pilot valve are generally only 1 liter / min Left and right, up to 3 liters / min. Two pilot valve flow will be based on actual needs of the decision. 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 .; Structure, a variety of functions to choose easy; 6) Pilot valve itself is often a small size control valve, mostly pressure control valve.
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