... ~25KW,380V/440V Fans of the series are widely used High 140 oven, underground garage, tunnels, and so on. ... circumstances exhaust ventilation or fire when the high temperature exhaust gas) purposes.Features: 1. Excellent high temperature properties. Fan Test with GBJ45-82 ... higher than the guarantee system, under the conditions of high temperature 400 continuous operation can be more than 100 minutes, ...