The design, manufacturing and structure length shall refer to theprovisions of GB/T12221-2005. The safety design and manufacturing test shall conform to theprovisions of ASME B16.34.The sanitary design shall conform to the provisions of GB/T13927. The disinfection and sterilization shall conform to the provisionsof GB/T 13927. Rotate for 90° , and act flexibly.The ball valve seat adopts semi-encapsulated structure, with reliable sealing and no leakage.Use three-piece structure design, and all parts are easy to beremoved,cleaned and disinfected.Full bore, small flow resistance, easy to clean the pipeline.