Dual fire barrier doors Products the fire fence dual doors in the main coal mine drainage pumping station and main substation Chamber; mining area substation, belt conveyors, winches and distribution of electrical equipment, transformer chamber overhead line electric garage, battery motors library, fire-fighting equipment library, AC room and charging chamber and other chamber, the material library. Isolated personnel from the main purpose is to prevent non-professionals into an important place; another fire barrier dual-use door in a hazardous environment can play a role to isolate the source of fire, to prevent the spread of fire insurance. , Fire fence dual-use door work environment and conditions of use, the working environment: -30 ° C to 40 ° C air pressure: 0 to 3800Pa 2, fire barrier dual-use door used in coal mine explosive coal dust and methane gas hazardous locations . 3 stable the fire fence dual doors installed Location roadway surrounding rock roadway deformation is small, and no serious watering, fire fence dual door model specifications fire barrier dual-use door 4 sizes. No. Model Specification Weight (kg) 1 MFHSL1.4 * 1.8 1000 2 MFHSL1.6 * 1.8 1100 3 MFHSL1.8 * 2.0 1200 4 MFHSL2.1 * 2.0 1390 MFHSL 1.4 * 1.8 MFHSL (fire prevention and fence dual gate) 1.4 (cave mouth net through the width of 1400mm) 1.8 (cave mouth net by height 1800mm)