The flanged solenoid valve is a pilot-operated solenoid valve with a secondary opening valve composed of two major components, the secondary valve and the main valve. The opening and closing of the auxiliary valve is the control of the opening and closing of the main valve. The valves are available in two types: normally closed and normally open.
Normally closed solenoid valve, in the power off normal position, the secondary valve port is closed, the main valve is open, when the tele-communications number enters the pilot valve coil, the active iron core is sucked by the electromagnetic force to open the secondary valve port, the pressure in the main valve cup quickly disappeared, the medium pressure will be the main valve cup support, open the main valve port, the working medium hard circulation. When the signal disappears, the moving iron core resets, the auxiliary valve port closes and fluid enters the valve cup from the self-balancing hole. When the pressure tends towards equilibrium, the main valve spring, the weight of the valve cup and the pressure of the medium move the valve cup downwards, sealing the main valve port and closing the valve again.
Cast iron 、steel 、stainless steel
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