Under the maximum pressure of the valve, if the maximum temperature does not exceed the temperature limit of the polymer material+one of the seals can use polymer. It is hoped that the throttling capacity of low leakage can be obtained in the metal metal sealed pneumatic ball valve. The spherical surface of foreign high-temperature pneumatic ball valves is chrome plated. The metal sealing element is 316 stainless steel with Stellite alloy surfacing. The valve diameter is less than l4 inch, and the combined value of temperature and pressure is between ANSI150 and 300 (depending on the valve diameter).

Good sealing performance of valve seat: the sealing ring made of elastic materials such as polytetrafluoroethylene is easy to seal, and the sealing capacity of pneumatic ball valve increases with the increase of medium pressure.
The thrust bearing reduces the friction torque of the valve stem, which can make the valve stem operate stably and flexibly for a long time.
Simple structure, small size and light weight.
Convenient operation, fast opening and closing: only 90 ° rotation is required from full opening to full closing, which is convenient for remote control.
Convenient maintenance: the ball valve is simple in structure, the sealing ring is generally movable, and it is easy to remove and replace.
When the valve is fully opened or closed, the sealing surfaces of the ball and valve seat are isolated from the medium. When the medium passes through, it will not cause erosion of the valve sealing surface.
Wide range of applications: the diameter ranges from a few millimeters to several meters, from high vacuum to high pressure. The ball valve can be used in media with suspended solid particles due to its wiping property during opening and closing.
High processing precision: the cost is expensive, and it is not suitable for use in high temperature. If there are impurities in the pipeline, it is easy to be blocked by impurities, resulting in the valve cannot be opened.