TDF series solenoid valve is 2 station 2 way pilot valve．It is a good actor in industrial piping line．It can use for refrigerating system，pneumatlc hydraulic and water supply system．Also it can use for fire control system and water spray system in dirty proof

　　 TDF series solenoid valve features follow performance：
　　 When valve work under low pressure differece，the valve open the valve directly．When the valve work under high pressure dtterence，the valve should be opened by pilot valve．While pilot valve open，upside ot valve reduced，it lead to pressure difference happen both side of piston，the piston move upward, so that the main valve open.

1.The valve must install in horizontal pipe line under vertical position. The flow direction must be meet the arrow direction in valve boby.
2.Installing position should be low viberation
3.Must install filter before solenoid valve in order to prevent block throttle port and lead to no function.
4.The coil input power must meet rated input power showed on the label.
5.System operating pressure must be meet open valve pertormance．
6.Departure coil from valve when energized in coil is limited in order to avoid damage the coil