ZB30-18-proof electric valve actuators

Valve DZB series of electric valve device is suitable for linear motion of the valve, such as valve, closing valves, diaphragm valves, piston valves, throttle valves, water gates and the like. Can be used for the next shot valve can also be used in the dark bar valve. The device has a full-featured, reliable performance, advanced control system, ease of use and maintenance. Widely used in electric power, metallurgy, petroleum, chemical, paper, coal, water supply and drainage and other departments. The main technical performance parameters: 1, Power: conventional, three-phase 380V (50Hz); special, three-phase 660V, 415V (50Hz, 60Hz); single-phase 220V, 110V (50Hz, 60Hz) 2, Ambient temperature: -20 to + 60 ℃ (special order -40 ~ + 80 ℃). 3, relative humidity: ≤95% (25 ℃ when). 4. Type of protection: flameproof products dI and dIIBT4 two kinds, dI applicable to non-coal mining face; dIIBT4 used in factories, for environmental IA ~ IIB grade T1 ~ T4 explosive gas mixture is set. (See GB3836.1) 5, protection class: IP55 (special order IP65, IP67). 6, the working system: short 10 minutes (special order 30 minutes)