Advantages and disadvantages of pneumatic valve and electric valve
2022/11/07
The actuating force distance of the pneumatic valve is larger than that of the electric valve. The switching speed of the pneumatic valve can be adjusted, with simple structure and easy maintenance. Due to the buffer characteristics of the gas itself, it is not easy to be damaged due to jamming. There is a gas source, and its control system is also more complex than that of the electric valve. Pneumatic valves are sensitive, safe and reliable. Many factories with high control requirements set compressed air stations for pneumatic instrument control elements. Electric means electricity. The function of the pneumatic valve positioner is to receive the output signal of the pneumatic regulator, and then generate an air pressure signal proportional to the output signal of the regulator to control the pneumatic regulating valve. There are many kinds of pneumatic valve positioners, which can be divided into displacement balance type and force (torque) balance type according to their working principle.
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2022/11/05
2022/11/05
Donghai
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