Overview：MFD941W mine ventilation disc valve is mainly used for coal mine ventilation, dust and environmental engineering and other piping systems, the pipeline gas medium according to different signals for traffic regulation and cut off; with reasonable structure, wear resistance, flow resistance is small, Easy operation, long service life and so on. With the KXBC mine explosion-proof valve electric control box supporting the use of direct access to the DCS system to meet the needs of coal mine automation control.