The Q941F-1=(PPL, M)-16,25 electric flange ball valve produced and sold by Huadian Pump Valve Company adopts CHR electric actuator and ball valve. The actuator and valve are directly connected, and the appearance is exquisite and beautiful. Electric flange ball valve can use a variety of valve seats, room temperature type using tetrafluorine seal, high temperature type can use para-polyphenylene or metal hard seal, with low friction coefficient, small operating torque, leakage up to zero leakage and other advantages, a variety of valve seat materials are available, the range of adaptation is wider. The CHR series actuator equipped with the electric flange ball valve can directly receive the 4~20mADC or 1~5VDC control signal output by the computer or industrial instrument, and carry out intelligent step adjustment (PID adjustment) of the actuator drive motor according to the deviation of the valve position feedback signal and the set value, so as to realize the accurate positioning of the valve or other device opening matching the actuator, and output the position feedback signal of 4~20mADC at the same time. The electric flange ball valve is especially suitable for the medium is viscous, containing particles, fiber nature of the occasion, at present electric ball valve is widely used in petroleum, chemical, metallurgy, light industry, papermaking, power station, refrigeration and other working fields.