Is the pneumatic cement butterfly valve grid a regulating valve?

2. Before maintenance, make sure that there is pressure in the step of the electric high-pressure butterfly valve, and the valve of the electric high-pressure butterfly valve is open. 　　　　

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Pneumatic butterfly valves with metal seals generally have a longer service life than those with elastic seals, but they cannot be completely sealed. If it is a soft seal, it can reach the standard of zero leakage. Of course, metal seals can operate at higher temperatures, while elastic seals cannot withstand high temperatures.

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