Model Meanings of F B D No.6.0/2x22: F: Ventilation Blower B: Explosion-proof/Flameproof D: Counter-rotating Type No.6.0: Impeller Outer Diameter 2x22: Power (2 pieces of 22kw motors) Description of Explosion-proof Pressure Counter-rotating Local Axial Ventilation Blower FBD series: This explosion-proof pressure counter-rotating local axial ventilation blower we manufactured in China fully conformed to the requirements of GB3836 <Electrical Apparatus for Explosive Gas Atmosphere>, and these explosion-proof pressure counter-rotating local axial ventilation blowers should be classified into ExdI type explosion motor/flameproof motor. Applications of Explosion-proof Pressure Counter-rotating Local Axial Ventilation Blower FBD series: This explosion-proof motor is frequently used in underground coal mines for local ventilation and it can also be used in other underground constructions for ventilation such as high-way, railway and underwater engineering. Working Conditions of Explosion-proof Pressure Counter-rotating Local Axial Ventilation Blower FBD series: Under following ambient conditions, this ventilation blower can work normally and reliably: 1.Local altitude is less than 1000m. 2.The ambient temperature range between-20∼40 3. Air relative humidity is less than 95%. We look forward to cooperation with you and join hands together to open a bright future for explosion-proof motors!