The High Platform Ball Valve Is A Relatively New Type Of Ball Valve

Sanitary Ball Valve is a relatively new type of ball valve, which has some unique advantages of its own structure, such as frictionless switching, seals that are not easy to wear, and small opening and closing torque. This can reduce the specifications of the equipped actuator. Through the multi-rotation electric actuator, the medium can be adjusted and strictly cut off. High platform ball valves are widely used in petroleum, chemical industry, strict cutting of urban water supply and drainage and other working conditions. Let the editor introduce what are the advantages and disadvantages of high platform ball valves?
1. Advantages of high platform ball valves:
1. The fluid resistance of the high platform ball valve is small, and its resistance coefficient is equal to the pipe section of the same length.
2. The high platform ball valve has a simple structure, small size and light weight.
3. Tight and reliable. At present, plastics are widely used as sealing materials for ball valves, with good sealing performance, and have also been widely used in vacuum systems.
4. The high platform ball valve is easy to operate and has a fast switching speed. It only needs to rotate 90° from full open to full closed, and the control distance is convenient.
5. Easy maintenance, the ball valve has a simple structure, the sealing ring is generally removable, and it is more convenient to disassemble and replace.
6. When the high platform ball valve is fully opened or fully closed, the sealing surface of the ball and the valve seat is isolated from the medium, and when the medium passes through, it will not cause erosion of the valve sealing surface.

7. The high platform ball valve has a wide range of applications, ranging from small diameters to a few millimeters, from high vacuum to high pressure. When the ball rotates 90 degrees, the outlet should completely present a spherical surface to cut off the flow.

2. Disadvantages of high platform ball valve:

Since the main valve seat sealing ring material of the high platform ball valve is polytetrafluoroethylene, it is inert to almost all chemicals, has a small friction coefficient, stable performance, is not easy to age, has a wide temperature application range, and has excellent sealing performance. However, the physical properties of polytetrafluoroethylene, including high expansion coefficient, cold flow sensitivity, and poor thermal conductivity, require that the design of the valve seat seal must be carried out around these characteristics. Therefore, when the sealing material hardens, the reliability of the seal will be impaired. In addition, polytetrafluoroethylene has a low temperature resistance and can only be used in this case at less than 180°C. Exceeding this temperature, the sealing material will age. Considering long-term use, it is generally not used at only 120°C.