The reason why valves mostly use air valves rather than electric doors:

1. Security considerations

Air valves are inherently safe characteristic. In the complex working environment, there are a large number of electric equipment and potential electric sources. The electric valve relies on power driving. Once an electric vehicle encounters a short circuit, such as a short circuit, a leakage, overload or an electromagnetic disturbance, its control system is likely to have an error. For example, near the strong electromagnetic radiation area, the electric valve may receive an error signal, which will accidentally open or close, which will bring serious safety hazards to the operation of the entire system.

The air-motion valve uses compressed air as its working power and does not rely on the electric signal. Therefore, it is very small affected by electromagnetic disturbances and can operate stably and reliably in a complex electric environment to ensure system safety. In addition, in areas such as near the gas delivery pipeline where flammable and explosive gases may exist, the use of electric valves may cause explosion hazards due to factors such as electric sparks, and the air valve will not generate electric sparks during work. In this case, Use of dangerous areas is safer.

2. Reliability comparison

The air-motion valve structure is relatively simple, mainly composed of components such as cylinders, pistons, valves, etc. This simple mechanical structure makes it relatively low in probability of failure. In contrast, the electric valve contains repetitive components such as motors, speed reducers, control circuits, etc.. For example, long-term operation of the motor may cause heat damage, and electronic components in the control circuit may also cause failure due to factors such as aging and moisture.

The air valve must ensure that the compressed air supply is stable, and that the main components such as the cylinder and piston can work stably if they are normal. In terms of maintenance, the maintenance of the air valve is relatively simple, making it easier for technical personnel to understand and deal with problems that arise. Generally, the normal function of the valve can be restored by simple operations such as checking the air source pressure and changing the seal. The fault diagnosis and maintenance of the electric door requires professional electric knowledge and complicated tools.

3. ​​Response speed comparison

The air-powered valve can be opened and closed quickly. When an emergency occurs in the factory, such as a pipe leakage or overpressure, the valve needs to be able to quickly respond to the flow. The operating speed of the air valve can be quickly adjusted by adjusting the pressure of the air source, etc., and the action can usually be completed in a few seconds or less. The operating speed of the electric valve is limited by factors such as the motor speed and the transmission ratio of the speed reducer, so the operation is relatively slow. For example, in the case of urgently tightening of the steam pipeline, the air valve can prevent steam leakage faster and reduce accident losses.

4. Cost factor

<p data-track=\"21\" From a cost perspective, the air valve has advantages in both initial investment and operational costs. The air valve itself is usually priced lower than the same specifications of the electric door because it is simple in structure and does not have a complicated electric machine.and control circuit components. In terms of operational costs, although pressure air needs to be provided, the pressure air system can serve multiple air equipment, and after the cost is divided, the operational cost per air valve is relatively low. Moreover, in terms of energy utilization efficiency, air valves also have certain advantages in some cases compared with electric doors, and their energy consumption is mainly to reduce air consumption.

5. Environmental adaptability

In terms of environmental adaptability, the air valve performs excellently. The factory working environment may be very bad, including high temperature, moisture, powder, etc. The main working parts of the gas valve are metal and seals, which are better tolerate temperature and humidity changes. Electronic components in electric doors are susceptible to high temperature and moisture environments and cause failure. For example, in high temperature environments, the performance of electronic components may decline, resulting in valve control failure.

In combination, there are many advantages such as high safety, strong reliability, fast response speed, low cost and good environmental adaptability. The valves in the factory use more air valves than electric doors.