Differences between electromagnetic control valves and pneumatic control valves

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1. The difference between electromagnetic control valves and pneumatic control valves lies in their actuation mechanisms; the valve bodies are the same； 2. In terms of operating conditions, solenoid control valves require high-voltage power to drive low-voltage control mechanisms, while pneumatic control valves need compressed air to drive such mechanisms or to be controlled by a base-type regulator. 3. Pneumatic control valves are preferable in environments where flammability and explosiveness are a concern (to avoid electric sparks); pneumatic valves are further divided into type that closes when a control signal is received and type that opens under the same condition, and they require an air supply. 4. Solenoid valves may be affected by electromagnetic signals, whereas pneumatic valves are influenced by the pressure of compressed air and winter temperatures. 5. The biggest difference lies in their actuation mechanisms; some small factories lack instrument air and therefore often use electric valves as a substitute for pneumatic ones. By specifying explosion-proof and magnet-proof properties at the time of ordering, it can be used in special environments just like pneumatic valves. The main difference between the two lies in their operating speed: pneumatic valves are faster than electric valves, which respond more slowly. In situations where conditions change frequently, caution should be exercised when using electric valves.