solenoid valve

While energized in coil,the coil emerges magnetic field and pick up plug stem,open the small orifice.Then the pressure in the upside of valve reduced, the pressure difference between both side of diaphragm happen,cause the diaphragm lift  to open the main orifice. While de-energized in the coil,plug stem will drop and close the small orifice because of spring force and its weight.The flow medium enter into upside of diaphragm through throttle hole,then pressure in both side of diaphragm,balances,then the diaphragm drop and close the main orifice.

FDF-M series solenoid valve is pilot type valve.

FDF-BFDF-Z series solenoid valve is the direct-acting type. The pull of the solenoid coil opens the valve port directly by lifting the seat disc off the valve seat.While de-energized in the coil,plug stem will drop and close the valve port because of spring force and its weight.

8.Being also available with flange connections.

7.Temperature of medium -25---105.

6. Max working pressure:30bar.

DC:  0.05-17bar               DC:    0-17bar

AC:  0.05-21bar               AC:    0-21bar   

Pilot type                     Direct-acting type

5.Opening Pressure Diff.:

l        

4.Being suitable for all fluorinated refrigerants.(including HCFC/HFC)

3.Supplying wide choices of coils for AC and DC

2.Supplying  both normally closed (NC) and normally open (NO) with de-energized coils.

1. Being one of the FDF series solenoid valves ,it can be used for refrigeration, freezing and air conditioning plant.

Features:

solenoid valve

solenoid valve:
direct or servo operated solenoid valve for liquid,suction,and hot gas lines with fluorinated refrigerants