Dongfang yoyik supply AST solenoid valve GS021600V with coil

Date:2019-9-5 17:51:26 Visits: Author:Dongfang YOYIK Engineering Co; Ltd,

          Dongfang yoyik supply AST solenoid valve GS021600V with coil

In normal operation, the AST solenoid valve is energized and closed, causing the AST/OPC main pipe to establish oil pressure, which causes the cup-shaped spool valve of the quick unloading valve in the main and variable speed steam valve actuator to be in the closed position (ie, pressed The lower part) closes the oil drain hole of the oil engine, causing the oil engine to establish oil pressure and open or adjust the valve. When the operating parameters exceed the limit, the ETS system issues a trip command, the AST solenoid valve is de-energized, and the AST and OPC main pipe oil pressure is released. At this time, the upper oil pressure of the cup-shaped spool valve of the quick unloading valve is lost, and the spool valve is moved up. Open the oil engine drain port to relieve the oil pressure and close the valve. In normal operation, the OPC solenoid valve is de-energized. When the overspeed and load rejection occurs, the power is turned on and the speed control valve is closed. After the speed drops, the power is turned off, and then the door is opened. At this time, the unit does not trip.

Pls feel free to contact us if you need any other valves.

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