BRYB3 series motors with high strengh cast iron structure,  coforms to the requirements of GB3836.1-2010《Electrical apparatus for explosive gas atmospheres Part 1:  General requirements》 IEC60079-1and GB3836.2-2010《Electrical) apparatus for explosive gas atmospheres Part 2:  Equipment protection by flame proof enclosures) "d"》 (EN50018), have the characteristics of high efficiency,high reliability, beautiful apperance, low noise, little vibration, and can be applied to a variety of equipments installed in explosion environment of petroleum, chemical,coal, power plant, metallurge fan, such as fan, pump,compressor and so on.