Step direct acting solenoid valve

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direct acting solenoid valves Principle: It is a direct-acting and pilot-operated combination of theory, no pressure when the inlet and outlet, the power, the electromagnetic force direct ly to the pilot valve and the main valve closure member in turn lift the valve to open. When the inlet and outlet to start pressure, the power, the electromagnetic force pilot valve, the main valve chamber under increased pressure, the chamber pressure drops, and thus the use of pressure to the main valve is pushed upwards; power, the pilot valve with a spring force or medium pressure to promote off pieces, moving down, so that the valve closes.  solenoid valve
Features: zero pressure or vacuum, high pressure can also be * action, but the power is larger, the request must be installed horizontally.