Komatsu excavator PC60-7 pilot rotary solenoid valve coil

Solenoid valve is a widely used mechanical equipment today, and some common faults will occur in the whole application process, such as the burning of solenoid valve coil. What is the reason for the burning of solenoid valve coil?

The authoritative experts of Lidian tell you that there are many reasons for the burning of solenoid valve coil, including external factors and internal factors. Let's actually look at it below.

External factors

The smooth operation of solenoid valves is closely related to the cleanliness level of liquid substances. Some customers use solenoid valves that go to sea for many years, but everything is still working normally. Many substances will have some tiny particles or material thickening, and this tiny chemical substance will gradually adhere to the valve core and become hard. Many customers report that everything is working normally the night before, but the solenoid valves can't be opened the next morning. As a result, when they are removed, they find that there is a thick layer of thickening on the valve core. This kind of situation is the key reason for the burning of solenoid valve coil, because the current will increase sharply when the valve core is stuck, which is very easy to lead to the burning of solenoid coil.

Internal factors

The clearance between the rotary vane pump sleeve and the valve core of the solenoid valve is not large, and it is generally installed in parts. When there is mechanical equipment residue or too little grease, it is very easy to get stuck. The solution can be to stab stainless steel wire through the small round hole at the top of the head to make it bounce back.

Solution of pneumatic control container plate for solenoid valve

Remove the solenoid valve, take off the valve core and valve core sleeve, and clean it with CCI4 to make the valve core in the valve sleeve in a flexible posture. When disassembling, pay attention to the installation sequence of each component and the external wiring parts to facilitate reassembly and proper wiring, and also check

Check whether the hole of the pneumatic triple pump is blocked and whether the grease is sufficient. If the solenoid valve coil is burnt out, the wiring of the solenoid valve can be removed and measured with a multimeter. If the lead is taken, the solenoid valve coil is damaged. The reason is that the electromagnetic coil is damp, resulting in poor insulation and magnetic leakage, which leads to excessive current in the electromagnetic coil and damage, so it is necessary to avoid precipitation from entering the solenoid valve. In addition, the elastic yellow is solid, the recoil force is too large, the number of turns is too small, and the insufficient adsorption force can also cause the electromagnetic coil to be damaged. In case of emergency solution, the manual key on the solenoid can be pushed from the "0" position to the "1" position during all normal operations to urge the valve to open.