High quality: The stainless steel ball valve is compact and reliable. At present, the sealing surface material of the ball valve is widely used plastic and has good sealing performance .It has also been widely used in vacuum systems. Advantages: Stainless steel ball valve has simple structure, small volume and light weight. The fluid resistance is low, and the coefficient of resistance is equal to that of the same length pipe section. Frictionless: The stainless steel ball valve is easy to operate and quick to open and close. It only needs to be rotated 90 from fully open to fully closed for easy long distance control. There is no friction when opening and closing the valve. Easy to maintain: The stainless steel ball valve is easy to maintain, the structure of the ball valve ball valve is simple, the sealing ring is generally movable, and the disassembly and replacement are more convenient. Widely applicable: The stainless steel ball valve has a wide range of applications, ranging from from small diameters to a few millimeters to a few meters, from high vacuum to high pressure.