1, a brief introduction  

Ball valves can be closed tightly with only a 90 degree rotation operation and a small torque of rotation.  Completely equal body cavity provides much resistance to the medium  

Small, straight flow channel.  Ball valves are generally considered best suited for direct opening and closing, but recent developments have been designed with throttling and control  

For traffic.  The main characteristics of ball valve is its compact structure, easy to operate and maintenance, suitable for water, solvent, acid and natural gas and other general work medium  

Quality, but also suitable for harsh working conditions of the medium, such as oxygen, hydrogen peroxide methane and 2 ene.  Ball valve body can be integral or available  

It's modular.  

2. Working principle and realistic role  

Ball valves work by rotating the spool to make the valve unblocked or blocked.  Ball valve switch light, small volume, can be made into a large caliber, sealing can  

Depend, the structure is simple, the maintenance is convenient, the sealing surface and the spherical surface are often in the closed state, is not easy to be washed by the medium, has been widely used in various industries.  The ball  

Valve and plug valve are the same type of valve, only its closing part is a ball, the ball around the center line of the valve body for rotation to open, close  

A valve.