... 6, 6.3, 7.1, 8, 9, 10, 11.2 and so on .Widly using for ... .so on Explosion proof Axial Flow Fan Type BT35-11Application1,Designed forExplosive atmosphere Zone 1, ... different requirements.4,Impeller installation using symmetrical type to ventilate in two sides at different ... performance.6,With flexible installation: Bracket type, Pipe line type, Post type, Fixed type.7,According to the user require ...