Product description: DQF series electric ball valves are designed for Cement Company raw material libraries, such as inflatable cement silo control the development of a patented product. Its action life up to 100 million times, opening and closing time of 2 seconds / time (0 ~ 90 °), two targets were exceeded imports of similar products, is the ideal contemporary dedicated switch valve pneumatic control. Currently, the major domestic cement institute has generally choose this valve, have eliminated the common solenoid valve, pneumatic solenoid valve, pneumatic valve type 0, traditional electric valve and rotary air distributor, the country has 300 dry cement production line to apply this valves, and exported to Thailand, Vietnam, Laos, Pakistan, Saudi Arabia and Chile and other countries and major international cement by Sinoma Design Institute. F phase asynchronous motors; three-phase asynchronous motors; electric actuator manufacturers; valve electric device manufacturers; electric valve means; electric actuator; SKJ Electronics Siemens electric actuator electric actuator; DKJ-D actuator; SKZ electronic execution ; a powerhead; electric valve; YDF three-phase asynchronous motors; DQF electric ball in the absence of foreign-on (relay electrical signals) under the circumstances, the role of the power supply, keeping the fully closed electric lock, then dial in full Closed indicated position, power indicator switch signal (relay electrical signals) no output. When the turn signal after adding internal mini relay, the main motor rotation immediately, on its synchronous rotation of the pinion shaft, drive shaft and the gear wheel and stainless steel ball synchronous rotation, after 2 seconds, the valve is fully open position, in the limit the role of lower-level switch, the motor stops rotating, and remain locked while the electrical signal indicating the operation switch is touched, the switch signal output enable control room lights corresponding instructions, then dial in the fully open position indication. Conversely, when the turn signals disappear, the motor immediately reversed, after 2 seconds, in effect reverse limit switch, the motor stops, when the valve is fully closed position Specifications: DQF electric ball models: DQF-15, DQF DN15, DQF-25 DN25, DQF-32, DQF DN32, DQF-40, DQF DN40, DQF-50, DQF DN50, DQF-65, DQF DN65, DQF-80, DQF DN80, DQF-100, DQF DN100, DQF-125, DQF DN125, DQF-150, DQF DN150, DQF-200, DQF DN200 Ordering Information: When you order, please follow the instructions referring to specific models, specifications directory selection, processing the order they provide detailed information in order to work with each other, to that end, you get the quickest and most satisfactory services. 1. Please specify the model by model representation, if there are special requirements when ordering must explain, if not press the company required to provide instructions. 2. Environmental explosive gases must explain and must comply with the provisions of this specification proof mark. 3. Please include a standard connection dimensions, stem diameter and extended length, if the connection does not match the size of the present specification, can be resolved through consultation with the Company. 4. hand clockwise to close the valve, such as the contrary must be explained. 5. thrust stem nut pattern generally consists of user processing, the company is only a pre-hole machining, machining, please contact the company, please provide thread size. 6. The Company also requested by the user, provide other electrical device speed.