What are the characteristics of pneumatic powder butterfly valve?
1. Pneumatic butterfly valve is used as overpressure protection device on pressure vessel, equipment or pipeline. When the pressure in the equipment, vessel or pipeline rises above the allowable value, the valve will automatically open and then discharge all of it to prevent the pressure in the equipment, vessel or pipeline from rising continuously; When the pressure drops to the specified value, the valve shall be automatically and timely closed to protect the safe operation of equipment, vessels or pipelines.
2. The pneumatic drive device of the pneumatic butterfly valve is safe, reliable, cheap, easy to use and maintain, and is the main branch of the valve drive mechanism. Pneumatic equipment is widely used in places with explosion-proof requirements. The valve pneumatic drive device adopts air source, with low working pressure and small structure size. The total thrust of the valve pneumatic drive device is not very large.
3. Pneumatic butterfly valve is generally composed of motor, reducer, manual mechanism, mechanical position indication mechanism, etc. Compared with other valve drive devices, the electric drive device has the characteristics of wide power source, fast and convenient operation, and easy to meet various control requirements. Therefore, in the valve drive device, the electrical device is dominant.
