Pneumatic valve? What is the difference between electric valves and electric valves

The differences between pneumatic valves and electric valves, their advantages and disadvantages, and their suitability for different working conditions and purposes are as follows: 1 Electric valves use motors for power, while pneumatic valves use compressed air for power.

(1) Advantages of electric valves: They have good effects on liquid media and large diameter gases, and are not affected by climate. Not affected by the pressure of the compressed air. Disadvantages: High cost and poor performance in humid environments.

(2) Advantages of pneumatic valves: good performance for gas media and small diameter liquids, low cost, and easy maintenance. Disadvantage: Due to the fluctuation of air compressor pressure, it is easily affected by water content in the air compressor during winter in the north, causing the transmission part to freeze and not move.

2、 Generally, pneumatic power is faster than electric power, and electric power is dual-purpose. The price of pneumatic and pneumatic dual-use is relatively high.

3、 Electric valves are used in places with large pipe diameters because they are difficult to achieve pneumatically. However, the stability of electric valves is not as good as that of pneumatic switches. The actuator may experience tooth jamming if the speed is slow for a long time. Pneumatic valves have fast switching speed and high accuracy, but require a stable air source.

4、 Electric valves operate slowly, and there are not many brands of electric valves that can achieve explosion-proof performance; Pneumatic valves act quickly and are relatively more expensive than electric valves in terms of explosion-proof performance (key accessories for pneumatic valves will be more expensive if equipped with larger brand accessories).

Why are electric valves also used when it comes to interlocking valves?

(1) According to the local weather and climate, if the climate is humid, the pneumatic valve cannot be used because the air source carries water.

(2) Electric valves can also achieve interlocking function without additional cost, while pneumatic interlocking will increase the number of holding valves and increase costs. What are the advantages and disadvantages of electric valves and pneumatic valves? When do electric valves need to be used instead of pneumatic valves, and when do pneumatic valves need to be used instead of electric valves? What are the advantages and disadvantages between them, and in terms of price.

The action force distance of pneumatic valves is larger than that of electric valves. The opening and closing speed of pneumatic valves can be adjusted, and the structure is simple and easy to maintain. During the action process, due to the buffering characteristics of the gas itself, it is not easy to be damaged due to jamming. However, * * * has a gas source, and its control system is also more complex than that of electric valves. Electric valves are driven by electricity and are not suitable in situations with explosion-proof requirements, such as when there is a large amount of flammable gas dispersed in the surrounding environment, they can only rely on pneumatic operation. Pneumatic response time is slower than electric.