Pneumatic hydraulic: What are the advantages of pneumatic butterfly valve?
Pneumatic butterfly valve is an industrial accessory capable of supporting, buffering, braking, height conditioning and angle conditioning. It is widely used in daily life, but the pneumatic butterfly valve is a worn accessory. After a certain period of use, it will present some problems. We need to change it this time. So what is the difference between the pneumatic butterfly valve and the ordinary ball valve? What will happen when the demand changes?
The principle of pneumatic butterfly valve is different from that of common mechanical ball valve. The principle of the pneumatic butterfly valve is to fill the closed pressure cylinder with inert gas or oil gas mixture, so that the pressure in the cavity is several times or dozens of times higher than the atmospheric pressure. The movement of the piston rod is completed by the pressure difference generated by the cross-sectional area of the piston rod being less than the cross-sectional area of the piston. Its calculation is based on the lever principle and the straight line anti proportion theorem. The common ball valve is a mechanical part that works with elasticity. The parts made of elastic materials deform under the action of external force, and recover after removing the external force. The movement speed of the pneumatic butterfly valve is relatively slow and easy to control. The pneumatic installation structure is simple, heavy and the device maintenance is simple. However, the cost of the pneumatic butterfly valve may be higher than that of the mechanical ball valve.