Working principle of two position two-way solenoid valve

Two position two way solenoid valve is a direct pilot type solenoid valve with step-by-step action It can be divided into normally closed solenoid valve and normally open solenoid valve according to the different opening and closing states when the power is off Normally closed solenoid valve, after the coil is energized, the armature first drives the auxiliary valve plug to lift under the electromagnetic force, and the fluid on the main valve cup flows through the auxiliary valve, reducing the pressure on the main valve cup When the pressure on the main valve cup decreases to a certain value, the armature drives the main valve cup, and uses the differential pressure to open the main valve cup, and the medium flows After the coil is powered off, the electromagnetic force disappears and the armature is reset due to its own weight At the same time, depending on the medium pressure, the main and auxiliary valves can be closed tightly Normally open solenoid valve After the coil is energized, due to the suction, the moving iron core moves down, the plug of the auxiliary valve is pressed down, the auxiliary valve is closed, and the pressure in the main valve cup rises When the pressure rises to a certain value, the pressure difference between the upper and lower parts of the main valve cup is the same Due to the electromagnetic force, the moving iron core pushes the main valve cup down, compresses the main valve seat, and the valve is closed When the coil is powered off, the electromagnetic suction is zero, the auxiliary valve plug and moving iron core are lifted upward due to the spring action, the auxiliary valve is opened, and the fluid on the main valve cup flows through the auxiliary valve, reducing the pressure on the main valve cup When the pressure on the main valve cup is reduced to a certain value, the main valve cup is pushed up by the pressure difference, the solenoid valve is opened, and the medium flows Previous valve knowledge: working principle of branch pressure reducing valve next valve knowledge: working principle of wet alarm valve · working principle of wet alarm valve 2009-8-10 · working principle of branch pressure reducing valve 2009-8-4 ·Working principle of gas emergency shut-off valve August 3, 2009 working principle of pneumatic angle seat valve August 1, 2009 ·Working principle of stop valve 2009-7-30 Related similar products:   SLDF series underwater special solenoid valve ZQDF copper series two position two-way solenoid valve Cs-720 timing drain valve SLF plastic King solenoid valve SLP stainless steel two position two way pilot solenoid valve