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What are the differences between pneumatic valves and electric valves


Release time:

2022-02-09

Wuxi Xinming automatic control valve industry to introduce usPneumatic valveWhat are the differences and electric valves. Pneumatic valves are driven by compressed air. Pneumatic valve procurement only clear specifications, categories, pressure is satisfied with the procurement requirements of the practice, can be used to control air, water, steam, all kinds of corrosive media, mud, oil, liquid metal and radioactive media and other types of fluid activities.

What are the differences between pneumatic valves and electric valves

Wuxi Xinming automatic control valve industry to introduce usPneumatic valveWhat are the differences and electric valves.
Pneumatic valves are driven by compressed air. Pneumatic valve procurement only clear specifications, categories, pressure is satisfied with the procurement requirements of the practice, can be used to control air, water, steam, all kinds of corrosive media, mud, oil, liquid metal and radioactive media and other types of fluid activities. It was not perfect in the market economy environment at that time. As a result of pneumatic valve manufacturers in order to product competition, each in the pneumatic valve unified design concept, different innovations, formed their own enterprise standards and product characteristics. Therefore, in the pneumatic valve procurement more detailed technical requirements, and manufacturers in harmony with the agreement, as a pneumatic valve procurement contract annex is very necessary.
       Pneumatic valveThis type of valve in the pipeline should generally be horizontal device. Compressed air is used to push multiple groups of combined pneumatic pistons in the actuator to move, transmitting force to the characteristics of the beam and the inner curved track, driving the air-core main shaft to rotate, and the compressed air disc is transmitted to each cylinder. The inlet and outlet directions are changed to change the rotation direction of the main shaft. According to the requirements of the rotation torque required by the load (valve), the number of cylinder combinations can be adjusted to drive the load (valve) to work.
Electric valve action distance than the general valve, electric valve switch action speed can be adjusted, simple structure, easy maintenance, can be used to control air, water, steam, various corrosive media, mud, oil, liquid metals and radioactive media and other types of fluid activities. The traditional pneumatic valve action process due to the buffering characteristics of the gas itself, not easy to get stuck and damaged, but there should be a gas source, and its control system is also more messy than the electric valve. This type of valve in the pipeline should generally be horizontal device.
In the production process, in order to make the medium pressure, flow and other parameters meet the requirements of the process, the device conditioning mechanism is required to regulate the above parameters. The main working principle of the conditioning mechanism is to adjust the above parameters by changing the flow area between the valve disc and the valve disc and the valve seat. Belong to this kind of valve is collectively referred to as the control valve, which is divided into relying on the medium's own power drive called self-drive control valve, such as pressure reducing valve, pressure regulator valve, etc., where the power drive (such as electricity, compressed air and hydraulic power) called other drive control valve, such as electric conditioning valve, pneumatic conditioning valve and hydraulic conditioning valve.
Electric valves, in short, use electric actuators. Operate the valve, and then realize the opening and closing of the valve. It can be divided into two parts, the upper half of the electric actuator, the lower half of the valve. Imitation action and pressure test should be carried out before the device. 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, the defect cost is high, and it is not good in humid environment.
The above is Wuxi Xinming automatic control valve industry to introduce us to the relevant content.







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