The ball valve offers the smallest fluid resistance among all valves, making it an excellent choice due to its low resistance. Even when the diameter of the ball valve is reduced, its fluid resistance remains appropriately small.
Thanks to the thrust bearing, the valve stem experiences significantly less friction, allowing it to function smoothly and responsively over an extended period of time. This feature is essential in ensuring the overall effectiveness and durability of the valve stem. Its use provides for improved performance and operation, ultimately contributing to optimal functioning of the system.
The sealing performance of the valve seat is excellent, thanks to the sealing ring composed of elastic materials like PTFE. This ensures easy sealing of the ball valve, with increased valve seal as the medium pressure rises.
A tightly sealed valve stem is essential for imitating rolling movement. Fortunately, the packing seal of the valve stem is built to last and won't be quickly damaged. In fact, the higher the medium pressure, the more effective the seal becomes. This ensures that no matter how much pressure is placed on the valve, it won't fail due to a faulty seal on the stem.
5. The long service life of a ball valve is attributed to the excellent self-lubricity and minimal friction loss with the ball that materials like polytetrafluoroethylene possess.
The valve stem in a bottom-mounted design features a convex step on the head, which serves to prevent any unwanted spraying out of the valve stem. Additionally, during a fire, if the valve stem seal becomes damaged, the convex step, when in contact with the valve body, can help to form a metal seal, thus ensuring that the valve stem remains properly sealed off. This design element helps to enhance safety and reliability in critical applications, making sure that valves remain closed when needed.
The presence of an anti-static function in the valve design is vital. It involves incorporating a spring between the ball, valve stem, and valve body. This ingenious mechanism serves the purpose of dissipating any static electricity that may be generated during the switching process. With this feature, the valve becomes capable of effectively and safely handling static electricity-related issues.