Characteristics and Common Questions of Ball Valves

Ball valves are a highly popular type of valve. Its core advantage lies in its extremely low flow resistance, which is almost negligible and, under ideal conditions, is zero. This enables it to work efficiently in various fluid transportation systems.

Ball valves can achieve a complete seal within a wide range of pressures and temperatures, thanks to the design of the ball and the valve seat. Moreover, ball valves can be opened and closed rapidly. For some ball valve structures, the opening and closing time is only 0.05 - 0.1 seconds, making them very suitable for use in automated control systems.

For users, one of the concerns is the sealing material of the ball valve. Usually, the valve seat sealing material of ball valves is mostly polytetrafluoroethylene. Although this material has many advantages, it also has some limitations. For example, it is prone to aging at high temperatures, thus affecting the sealing performance.