12v hydraulic solenoid valve is industrial equipment, a common control components, is used to control the fluid automation infrastructure components, belongs to the actuator, and is not limited to hydraulic, pneumatic. Used in industrial control systems to adjust the direction, flow, speed and other parameters of the medium. You can use a 12v hydraulic solenoid valve with different circuits to achieve the desired control, while ensuring precision and flexibility. There are many kinds of solenoid valves. Different solenoid valves play roles in different positions within the control system. The most commonly used types are hydraulic solenoid valves, safety valves, directional control valves, and speed regulating valves.
Switching solenoid valves, as the name implies, switching solenoid valves have input electrical signals of rated voltage and zero-volt voltage, and output hydraulic/pneumatic signals of maximum and minimum states. When the switching solenoid valve is working, the coil always works at the maximum electrical signal or minimum electrical signal. For a long time working in the maximum electrical signal of the solenoid valve, on the one hand, the control signal is consistently at the maximum, on the other hand, the solenoid valve for a long time when the work of the heat, but also significantly affect the life of the solenoid valve. I found some manufacturers of information, collated two common energy-saving control to share with you, on the one hand, you can reduce power consumption, on the other hand, can significantly reduce coil heating, improve the service life of the solenoid valve.
Method 1: Microcontroller control
A switching solenoid valve experiences three phases—start-up, opening, and holding open—from the moment the system energises it until it fully opens. The three phases face different reverse forces. Therefore, we can understand that each phase requires different electromagnetic forces. As a result, each phase needs different control signals.
In the following figure, you can see that the microcontroller output signal is divided into three stages. In this case, the first two stages follow strategy 2s. Then, the solenoid valve will work for a long time in the third stage and maintain the control signal. At this point, the control signal is a start signal of 40%. Consequently, the consumption of the control signal is reduced by 60%. This reduction significantly decreases heating and greatly improves the life expectancy. The disadvantage is that the microcontroller on the switching solenoid valve control output pin needs to be a proportional amount, and can not be switching.
Method 2: Energy saving plugs
From the following frame diagram and input signal consumption diagram, we can understand the energy-saving plug. It integrates a microcontroller in the plug. This allows the plug to use a switching signal for the input. The actual output signal resembles that introduced in “Method 1”. This solution will not change the basis of the external control signal. It will significantly reduce the consumption of the solenoid valve. Additionally, it will improve the service life of the solenoid valve.
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