Selection of pneumatic and electric on-off valves
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Hello, experts； I would like to ask some questions regarding the selection of pneumatic control valves and electric control valves. Specifically, it refers to the situations in which pneumatic on-off valves should be used, and the situations in which electric on-off valves should be used. Please give me more guidance; thank you.
For applications that require rapid shutdown, pneumatic systems are used; for larger diameters where there are no requirements regarding the shutdown time, electric systems are employed
Travel time is just one factor; what’s more important is what drives the customer’s actions on site. Valves used in power plants are generally electric, while those used in the chemical industry are usually pneumatic, as it helps to save energy
1. Considerations regarding safety and explosion prevention; 2. In the event of an emergency, whether there will be a power or gas outage; 3. Caliber size and speed; 4. Cost-performance ratio.
Could someone discuss the fire safety issue?