Excavator solenoid valve 21P-60-K5160 Hydraulic solenoid valve is suitable for Komatsu PC150-6 PC160-6

Application of proportional solenoid valve
 

  Control of liquid level by pressurization One method of level control is to control the pressure of the gas above the liquid level. Through two proportional solenoid valves, the PID controller provides enough air (nitrogen in this case) to keep the pressure above the liquid level constant at all times (as the liquid level drops, so does the gas pressure). Flow control Proportional solenoid valves are used directly to control flow burner/Flame control The burner control system must control two gases. The two gases are mixed in a certain proportion. The ratio of combustion gas to oxidation gas (air or oxygen) is determined according to the size of the flame required for each combustion process.

    Proportional pressure valve analysis and elimination because the proportional pressure valve is just on the basis of the ordinary pressure valve, the regulator handle is replaced by a proportional electromagnet.

     Therefore, the various faults caused by the ordinary pressure valve, which will also produce the ordinary pressure valve fault causes and elimination methods are also fully applicable to the corresponding proportional pressure valve (such as the overflow female corresponding proportional relief valve), can be referred to for processing.  

The main principle of the proportional solenoid valve is that the flow control signal and control force are used as the energy source of the electromagnetic coil, so that the electromagnet controls the opening of the valve, so the opening of the valve is roughly proportional to the size of the flow control signal.

According to the different flow, each control position has a different flow value, which is fed back to the flow controller, the flow controller can adjust the position of the valve according to the output signal of the same size as the flow here, so as to achieve precise control requirements.

The control principle of the proportional solenoid valve has three main aspects: first, the fluctuation of the electrical signal affects the opening degree of the valve;