Cast steel flange ball valve and gate valve are the same type of valve, the difference is that its closing part is a ball, the ball rotates around the middle line of the valve body to achieve the opening and closing of a valve.

Ball valves are mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. Ball valve is a new type of valve widely used in recent years, it has the following advantages: 1. The fluid resistance is small, and its resistance coefficient is equal to that of the pipe segment of the same length. 2. Simple structure, small size, light weight. 3. Tight and reliable, the sealing surface material of the ball valve is widely used in plastic, good sealing, and has also been widely used in vacuum systems. 4. Easy to operate, open and close quickly, from full open to full close as long as the rotation of 90 degrees, easy to remote control. 5. Easy maintenance, ball valve structure is simple, the sealing ring is generally active, disassembly and replacement are more convenient. 6. When fully open or fully closed, the sealing surface of the ball and the seat is isolated from the medium, and the medium will not cause erosion of the valve sealing surface when it passes through. 7. Wide range of application, small diameter to a few millimeters, large to a few meters, from high vacuum to high pressure can be applied.

Advantages:

Ball valves are mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. Ball valve is a new type of valve widely used in recent years, it has the following advantages:

1. The fluid resistance is small, and its resistance coefficient is equal to that of the pipe segment of the same length.

2. Simple structure, small size, light weight.

3. Tight and reliable, the sealing surface material of the ball valve is widely used in plastic, good sealing, and has been widely used in the vacuum system.

4. Easy to operate, open and close quickly, from full open to full close as long as the rotation of 90 degrees, easy to remote control.

5. Easy maintenance, ball valve structure is simple, the sealing ring is generally active, disassembly and replacement are more convenient.

6. When fully open or fully closed, the sealing surface of the ball and the seat is isolated from the medium, and the medium will not cause the erosion of the sealing surface of the valve.

7. Wide range of application, small diameter to a few millimeters, large to a few meters, from high vacuum to high pressure can be applied. When the ball is rotated 90 degrees, the inlet and outlet should all be spherical, thus cutting off the flow.

Ball valves only need to rotate 90 degrees of operation and a small torque to close tight. The completely equal body cavity provides the medium with little resistance and a straight flow path. Ball valves are generally considered more suitable for direct opening and closing use, but recent developments have designed ball valves to provide throttling and flow control. The main feature of the ball valve is its compact structure, easy operation and maintenance, suitable for water, solvents, acids and natural gas and other general working media, but also suitable for poor working conditions of the media, such as oxygen, hydrogen peroxide, methane and ethylene. Ball valve body can be integral, can also be combined.