cold and hot air isolating door

【Product number】：RGM、CBM、DBM、GJM Type series
【Product function】：Media Interruption
【Applications】：This series of silencers are mainly applied to the electric power, chemical, metallurgy, mining, textile industries and so on.
The hot wind interrupt doors are usually installed in the channel between the air preheating output orifice and coal mill input orifice of the power plant’s boiler.to prevent the hot wind into the coal mill.The standard plug-board interruption doors are commonly used in the first cold wind .