Ball is the advent of the 1950s a new type of valve, the valve has become common

Ball is the advent of the 1950s a new type of valve , has now become a common valve, which is widely used in the aerospace , petroleum, chemical , long- distance pipelines , light industry, food and other aspects , advantages in the high-pressure , small- diameter aspect more prominent its main features are as follows : 1 ) small  Instrument valve manifolds  , high flow capacity, the full-flow type indented diameter valve, local resistance is almost identical to the same length of pipe friction ; 2 ) good sealing and long service life . high reliability ; 3 ) switch quickly and easily ; 4 ) self-cleaning , suitable for handling viscous fluids,  Valve manifolds  solids pressure valve design in addition to a common problem with other valves outside , there are two difficulties to be resolved. : a long life is guaranteed under the sealing performance ; another is to minimize operating torque structure and working principle , the sphere of the sphere of support by way of support way valve can be fixed into floating ball valve and ball valve floating ball . the main advantage of valve is simple in structure, easy to manufacture, low cost , reliable, but at higher pressure, operating torque is great. while fixed ball valve job, valve before the fluid pressure generated by the force on the ball all the transfer to the bearing seat does not put too much pressure. torque fixed ball valve is small, small seat deformation , stable sealing performance.