The explosion-proof electric valve device with YBDF series of flameproof electric valve with three-phase asynchronous motor assembly, complete explosion-proof structure, explosion-proof performance in line and GB3836.2 explosive environment with explosion-proof electrical equipment, flameproofelectrical equipment "d" "provides proof mark d Ⅱ BT4, for class Ⅱ A, class B, T1, T2, T3, T4 group combustible gas with air to form an explosive mixture of places. ZB electrical installations, and the gate valve, globe valve, throttle valve and diaphragm supporting assembled into electric valves, and secondary reducer assembly into the the DQB valve electrical installations with ball valve, butterfly valve supporting composed of electrically operated valve. It can accurately control commands for opening and closing action to implement remote control, centralized control and automatic control valves.
Technical conditions
Power supply: conventional, three-phase 380V (50Hz)
Special, three-phase 660V, 440V, 415V (50Hz, 60Hz);
Single-phase 220V, 110V (50Hz, 60Hz)
Ambient temperature: -20 - +60 ℃ (special order -40 - +80 ° C).
(3) Relative humidity: ≤ 95% (25 ° C).
(4) Type of protection: outdoor type for non-flammable, explosive and corrosive media establishments. D I and d II BT4, two kinds of flameproof products, d Ⅰ, applicable to non-coal mining face; d Ⅱ BT4 used in factories, for environment II A, II Class B of T1-T4 group of explosive gas mixtures. (Refer to GB3836.1)
(5) Protection class: IP55 (special order IP65, IP67).
Work system 10 minutes: short-term (special order 30 minutes).
