Wafer ball valve products with reference to the characteristics of the product in Italy, compared with ordinary ball valve, with a short length of the structure, light weight, easy installation, material saving significant advantages. Folder jacketed ball valve insulation effect. In addition, the valve seat with elastic sealing structure, reliable sealing, open and close easily. A fire-resistant structure, in case of fire, still can be reliably operate and has a good seal. According to user needs, with anti-static structure. 90 ° switch hole positioning pieces, if necessary, can be locked to prevent misuse. Product Use: Wafer ball valve and wafer insulation jacket ball valve suitable for Class150, PN1.0 ~ 2.5MPa, Operating Temperature 29 to 180 ° C (ring PTFE) or 29 to 300 ℃ (ring on bit polystyrene) various pipeline, used to cut off or connected line of medium; nominal diameter: DN15-500mm; nominal pressure: PN1.6-2.5mpa; Suitable medium: water, gas, oil, gas and acid corrosion, oxidation, urea and other media; applicable temperature: -20-150-300 ° C; Driving modes: manual, pneumatic, electric, etc.; Body Material: carbon steel, cast steel, 304,316,316 L such as stainless steel;