Explosion-proof ZB45-24, Z45-24B valve actuators Z10-24B DZB10 Z20-24B DZB20 Z30-24B DZB30 Z45-24B DZB45 Z60-24B DZBW60 Z90-24B DZB90 Z120-24B DZB120 Z180-18B DZB180 Z250-24B DZWB50 DZB350 DZB350 Z500-18B DZB500 electric rotary head 1. This means dust, water, light anti-corrosion, the protection class IP55, IP65 (special order); 2. The torque control body movements and reliable, easy to adjust torque high repeatability ; 3. stroke control mechanism adjusts the high accuracy and repeatability, opening and closing to be fitted to each of 2-4 micro switch; 4. Using semi-automatic hand - electric switching mechanism, institutional simple, reliable, easy operation; 5. The use of valve actuators with three-phase asynchronous motors, starting torque, small moment of inertia; 6. with a mechanical valve position indicator. 1. Ambient temperature: -20 ℃ ~ + 60 ℃; 2. Relative Humidity: 95% (25 ℃ when); 3. Working environment: non-flammable, explosive and highly corrosive media; 4. protection: IP55 , IP65 (special orders power: When 380V 50HZ 50HZ (special request orders made this series Denso has full-featured, reliable performance, advanced control system, small size, light weight, easy maintenance features can be implemented on the remote control valve , centralized control and automatic control. flameproof widely used in electricity, metallurgy, petroleum, chemical, paper, sewage treatment and other industries. performance of the product in line with JB / T8528-1997 "common type valve electric device technology" requirements. The performance in line with GB3836.1-2000 "explosive gas atmospheres Electrical Equipment Part 1: General requirements", GB3836.2-2000 "Electrical equipment for explosive gas atmospheres Part 2: Flameproof" d "" and JB / T8529 . -1997 "flameproof electric valve actuators technical conditions" requirement rotary electric motor means by anti-type points: a common type, outdoor type and flameproof by control points: a conventional type, integrated and intelligent integration type according to the type of connection points: a torque-type, power and thrust.