The DYZ series outdoor valve electric device is a driving device for electric valves, used to control the opening and closing of valves. The DZW series multi turn electric device is used for gate valves, globe valves, throttle valves, and diaphragm valves. It can accurately operate according to control instructions and is a driving device for remote control, centralized control, and automatic control of various valves and dampers. ◆ Technical conditions $r $n $r $n 1. Environmental temperature: -20 ℃~+60 ℃; $r $n $r $n 2. Relative humidity: not greater than 95% (at 25 ℃); $r $n $r $n 3. Working environment: No flammable, explosive, or highly corrosive media; $r$n$r$n 4.