Electric three-way ball valve ball valve three points L and T-type. L-type three-way ball valve for medium flow switching, can make two channels perpendicular to each other; T-type ball valve for medium diversion, confluence or flow switching, T-shaped channel can make the three channels connected to each other or One of the two channels connected, three-way ball valve generally two seat structure, can also be used according to user requirements four seat structure. Structural features and uses 1, compact structure, quick opening and closing, smooth flow, fluid resistance. 2, good sealing performance: the use of PTFE gasket material on all sides to achieve leak-free seal. 3, a multi-purpose valve: any port can be used as an entrance without leakage, tee can be made L-type port can also be made T-port. 4, easy maintenance: After the system pressure relief, without having to remove the entire body can be checked and repaired. 5, Pan suitable for water supply, petrochemical, metallurgy, mining, textile, energy, paper, food, steel and other piping system to switch the flow of media and the diversion of media or mixed fluid. Implementation of the standards 1, design and manufacture: GB / T12237-1989; APl608. 2, test and test: GB / T13927-1992; APl 598. 3, the flange connection: JB / T79.2-1994; ASME / ANSI B165. 4, the length of the structure: JD-2002