The electric three-way control valve has been used more and more widely due to its high adjustment accuracy, stable and reliable action, and the unique characteristics of one valve for multiple uses, and has been involved in many fields. However, users often encounter many problems in the actual application process, which has a lot to do with the knowledge and understanding of the electric three-way control valve! Because the three-way control valve can be divided into a converging valve and a diverging valve according to the structure, the action form between the two is different!

Electric three-way control valve is often used for two medium adjustments of heat exchangers. It can replace two single and double-seat control valves. It can also save installation pipes, save investment, and occupy a small space. Powered by the power source, it accepts a unified signal of 0-10mA DC or 4-20mA DC to drive the valve opening to correspond to this operating signal to achieve the adjustment of pressure, flow, liquid level, temperature and other industrial parameters.​

Structural features of electric three-way control valve:​

1. When the shunt regulating valve of the electric three-way regulating valve works, one passage is fully closed, and the other passage is at the fully open position. When closed, the force is similar to that of a single seat valve.
2. The electric three-way control valve is modified from single and double seat valves, and uses the valve core itself to guide.
3. Due to the small unbalanced force of the small diameter, when DN<80, the confluence regulating valve can be used for diverting occasions.
4. The spool of the electric three-way regulating valve is the same as the sleeve of the sleeve valve, and its throttle area has two kinds of windows and small holes. The latter has the function of reducing noise and reducing resonance.
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Working principle of electric three-way control valve:​

The valve body of the electric three-way control valve is a three-way structure, that is, one inlet and two outlets (split type), two inlets and one outlet (combined type). The combined type is used to mix two fluids into a third fluid, or two The same fluids of different temperatures are mixed into fluids of the same temperature. The split type is to divide a fluid into two fluids.​

The electric three-way control valve has 3 inlets and outlets connected to the pipeline, which is equivalent to two single-seat valves combined into one body. According to the form of action, it is divided into a three-way confluence control valve and a three-way split control valve.​

The confluence regulating valve has two inlets and one outlet. The principle is that two fluids are mixed through the valve. For example, two fluids with different temperatures pass through the valve to mix fluids with a temperature between the first two. The shunt regulating valve has one inlet and two outlets, which divide a fluid into two paths after passing through the valve. When the valve closes one outlet, it opens the other outlet.​