Cryogenic ball valve is a high-performance valve designed for cryogenic and deep-cooling conditions, widely used in liquefied natural gas (LNG), liquefied petroleum gas (LPG), liquid nitrogen, liquid oxygen, liquid hydrogen, chemical industry and cryogenic storage and transportation systems and other fields. The valve is suitable for cryogenic media with a temperature range as low as -196℃, with excellent sealing performance, low temperature impact resistance and embrittlement resistance. The cryogenic ball valve adopts a long neck bonnet design, which effectively isolates the valve body from outside temperature transfer, prevents frosting in the packing area, and ensures flexible and reliable operation. With its compact structure, small flow resistance, rapid opening and closing, it can be equipped with manual, pneumatic, electric and other driving methods, which is convenient to realize remote control. Advantages of the product include high pressure strength, long service life, easy maintenance, and the ability to maintain stable operation under high-frequency opening and closing and severe working conditions. Cryogenic ball valves can not only accurately cut off and switch the medium flow direction, but also ensure the safe and efficient operation of cryogenic system, which is the ideal choice for deep cold engineering and energy transmission field.