The pros and cons of pneumatic valves and electric valves?

Release time:

25 Oct,2023

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Pneumatic valve advantages: good effect on gas medium and small diameter liquid, low cost, easy maintenance. Disadvantages: affected by the fluctuation of air pressure, it is easy to be affected by the water content of air pressure in the northern winter, causing the transmission part to freeze and not move.

1. Advantages of pneumatic valve: good effect on gas medium and small diameter liquid, low cost and convenient maintenance. Disadvantages: affected by the fluctuation of air pressure, it is easy to be affected by the water content of air pressure in the northern winter, causing the transmission part to freeze and not move.

2, electric valve advantages: the liquid medium and large diameter gas effect is good, not affected by climate. It is not affected by the pressure of air compressor. Disadvantages: high cost, bad in humid environment.

3. The electric valve has a very simple structure and a long service life. It is suitable for almost all media and has a viscosity of 600 mm2/s (centistokes). High temperature resistance and chemical corrosion resistance. Explosion-proof cost is low, only with compact type 72 explosion-proof pilot valve.

4. The action distance of the pneumatic valve is larger than that of the electric valve, the switching speed of the pneumatic valve can be adjusted, the structure is simple, and it is easy to maintain. Due to the buffering characteristics of the gas itself, it is not easy to be damaged due to jamming, but there must be a gas source., And its control system is also more complicated than electric valve.

5. Electric valves are used in some places with large pipe diameters because pneumatic is difficult to achieve, but the stability of electric valves is not as good as that of pneumatic switching speed. The actuator will have a stuck tooth phenomenon for a long time. Pneumatic valves have fast switching speed and high precision but need a stable air source.

Keyword:

Valve

Control Valve

How to correctly install the electric valve

The next one:

How to choose the valve in the water supply network

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