Matters needing attention solenoid valve characteristic analysis

1 Exposed and blocked, air leakage is easy to control, and application safety

Internal and external leakage is a serious safety hazard factor. Other automatic control valves usually extend the valve seat, and the rotation or movement of the valve core is controlled by electric, pneumatic, and hydraulic valve actuators. This must deal with the difficulty of external leakage of the dynamic sealing performance of the long-term posture valve seat; only the solenoid valve uses the magnetic field force to work on the transformer iron core whose sealing performance is in the magnetic isolation waterproof casing. absolutely. The torque control of the electric control valve is not easy, it is very easy to cause air leakage, and even the top of the stem head is pulled off; the structure of the solenoid valve is very easy to control the internal leakage until it drops to zero. Therefore, solenoid valve applications are especially safe, especially for substances that are corrosive, harmful or high and low temperature tests.

2 The system software is simple and easy to connect to the industrial computer, and the price is cheap

The solenoid valve itself has a simple structure and low price. Compared with other types of electric actuators such as regulating valves, it is easier to install and maintain. What is more remarkable is that the software of the automatic control system is much simpler and the price is much lower. Because the solenoid valve is controlled by the power switch data signal, it is very convenient to connect with the industrial automation electronic computer. Nowadays, when computers are popularized and prices are greatly reduced, the advantages of solenoid valves are even more significant.

3 postures, small output power, light appearance design

The response time of the anti-corrosion solenoid valve can be as short as many ms, and even the proportional pressure reducing valve can be operated within tens of seconds. Because it creates a control loop, it is more flexible than other automatic control valves. The properly designed overload protector has low output power consumption and is an energy-saving and environmentally friendly product; it can also ensure that only the opening position is required, the valve position is automatically maintained, and usually does not consume any power at all. The size of the solenoid valve is small, which not only saves indoor space, but also is light and beautiful.

4 Adjustment precision is limited, and applicable substances are limited

Solenoid valves usually only have two types of power switches, and the valve core is only in two extreme positions, which cannot be continuously adjusted. (There are many new design ideas that are trying to be improved, but they are still in the stage of experimental use). Therefore, the adjustment precision still suffers. Certainly limited. The solenoid valve has higher requirements on the cleanliness level of the material, and the material containing particles cannot be applied. If it is a residue, it must be filtered out first. In addition, thick substances are not applicable, and the viscosity range of substances suitable for special commodities is relatively narrow.