Manual stainless Steel Ball valve 5

The working principle of the ball valve is to turn the spool to make the valve unblocked or blocked. Ball valve switch is light, small, can be made into a large caliber, reliable seal, simple structure, easy maintenance, sealing surface and sphere are often in closed state, not easy to be eroded by media, widely used in various industries.

Ball valve and cock valve belong to the same type of valve, only its closing part is a sphere, the sphere revolves around the center line of the valve body to open and close a valve.

Ball valves are mainly used in piping to cut off, distribute and change the flow direction of media. Ball valve is a new type of valve widely used.

Fixed ball valve: The ball body of the ball valve is fixed and does not move after being pressed. Fixed ball valves are equipped with floating seats. After medium pressure, the seats move, so that the sealing ring is pressed on the ball to ensure sealing. Usually, bearings are installed on the upper and lower axles of the sphere, and the operation torque is small. It is suitable for high pressure and large caliber valves. In order to reduce the operating torque of the ball valve and increase the reliability of the enclosed seal, oil-sealed ball valves have appeared, which not only inject special lubricating oil between the sealing surfaces to form a layer of oil film, which enhances the sealing performance, but also reduces the operating torque, and is more suitable for high-pressure and large-caliber ball valves.