YBF2-B series explosion-proof motor matching blower are made to match BT35-11 series axial ventilator. The safety performance conforms to the standard of GB3836.2-83. It is manudactured incorporating advantages of same kind motor in the world, and features preventing inner explosion out spread meanwhile with high efficiency, rapid temperature rising, low noise and good performance of starting, running.   The explosion proof mark is dI, dIIAt4, dIIBt4