The difference between Air Operated Valve and Electric Valve

A pneumatic valve is a valve driven by compressed air. When purchasing pneumatic valves, it is only necessary to specify the specifications, types, and working pressures to meet the purchasing requirements. flow.

The difference between the pneumatic valve and the solenoid valve is the difference in the signal source. The solenoid valve uses electricity to control the pilot gas to push the valve core to change direction, while the pneumatic valve directly pushes the solenoid valve core to change direction through gas. The pneumatic valve needs to cooperate with the mechanical The valve is used for use, and it is mainly used in the field that requires explosion-proof.

The advantages of electric valve and pneumatic valve:

1. Pneumatic valve has good effect on gas medium and small diameter liquid, low cost and easy maintenance. Disadvantages: Affected by the pressure fluctuation of the compressed air, it is easily affected by the water content of the compressed air in the northern winter, causing the transmission part to freeze and not move. Generally, pneumatics are faster than electrics, and electrics are dual-purpose flashlights. The price of pneumatic to hand, gas dual-use is relatively high.

2. The electric valve has good effect on liquid medium and large-diameter gas, and is not affected by climate. Not affected by air pressure. Disadvantages: high cost, not good in humid environment.

3. There are not many brands of electric valves that can achieve explosion-proof action; pneumatic valves move quickly, and explosion-proof prices are relatively more expensive than electric bottoms (what accessories are equipped with key pneumatic valves, and accessories of large brands will be more expensive than electric valves).

4. Electric valves are used in places with large pipe diameters, because it is difficult to achieve pneumatics, but the stability of electric valves is not as good as that of pneumatic switching. Slow actuators will cause tooth jamming for a long time. Pneumatic valves have fast switching speed and high precision, but need to be stable Gas source.

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