Applicable to the management system of storage and transportation equipment of cryogenic liquid, and pipe system of other cryogenic media, cryogenic ball valve's main features are flexible switch and reliable sealing. The product is mainly applied to output cryogenic media, such asethylene, liquid oxygen and LNG productions. The cryogenic ball valve is adapted to various pipelines to cut off or connect the media in pipes. The operating temperature and media is different according to the selected materials. The drive mode of cryogenic ball valve can be manual operation, worm drive, pneumatic or motor-drive.