Loader solenoid valve Excavator accessories Solenoid valve 25/220994

Control principle of proportional solenoid valve
Proportional solenoid valve is a special control solenoid valve, its control principle is to control the opening of the valve through the external input command signal, so that the control flow and pressure always maintain the same proportion as the command signal. It uses a "position feedback" technology, which can accurately adjust the position of the valve according to the flow control signal, so as to achieve accurate control requirements, so it is widely used in accurate hydraulic system control. 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. Depending on the flow, each control position has a different flow value, which is fed back to the flow controller, which in turn can follow the output here
Flow of the same size signal to adjust the position of the valve, 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; The second is to control the rotation of the valve through the electromagnetic force; The third is to control the opening degree of the valve according to the rotation of the valve, and then pass the feedback signal loop to the flow controller to achieve the control of the flow