Promotional DQW10-1, DQW20-1, DQW30-1 powerhead QW10-1 DQW20-1 DQW30-1 DQW40-1 DQW60-1 DQW90-1 DQW120-1 DQW200-1 DQW250-1 DQW300-1 DQW400-1 DQW500-1 DQW800-1 DQW1000-1 DQW2000-1 electric device price DQW series part-turn valve actuators are electric valve drive means for controlling the valve opening and closing. DZW series is derivative products. Suitable for ball valves, butterfly valves and dampers, etc., which can accurately control instructions by action, is far from achieving the valve control, centralized control and automatic control of the best drives. This series is not only suitable for power plants, it can also be used in petrochemical, metallurgy, utilities and so on. DQW electric device Features 1. The device dustproof, waterproof, anti-light corrosion, the protection class IP55, IP65 (special order); 2. The torque control mechanism and reliability, easy adjustment, high torque repeatability; 3. trip control mechanism adjusts the high accuracy and repeatability, opening and closing to be fitted to each of 2-4 micro-switch; 4. In low gear semi-automatic hand - electric switching mechanism, the structure is simple, reliable, easy operation; 5 . using electric valve actuators with three-phase asynchronous motors, high starting torque, small moment of inertia; 6. fitted with a mechanical valve position indicator. DQW electric device technical parameters Ambient temperature -20 ℃ ~ + 60 ℃ Humidity ≤95% (+ 25 ℃ when) non-flammable working environment, explosive and highly corrosive media. Protection class IP55, IP65 (special order). ≤10% torque repeatability repeated position deviation ≤1 °