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1. The vacuum butterfly valve can withstand the pressure from the front than the general valve, reducing the degree of damage to the valve.

2. The vacuum butterfly valve can prevent the valve stem from jumping up and down when the valve stem is moving.

3. The valve can change the direction of the gas path by electromagnetic reversal, and then control the cylinder to drive the opening and closing movement of the butterfly valve.

4. The valve is designed to be used to switch on or off the flow of medium present in the vacuum line passage.

5. The valve can be adjusted and controlled for the medium brought by non-corrosive gas and pure air.

6. the valve can choose the matching feedback signal device, the positioner of the electric valve, so that it can have a good cooperation.