DFBZ方形轴流式通风机是对T40和国外同类产品进行分析对比，通过模型级试验研究后设计的新一代轴流通风机，具有效率高，噪声低的显著特点，广泛用于一般工矿企业、仓库、办公室、民用建筑内通风换气或加强暖气散热之用.

  As a new generation axial vent_lator．the DFBZ axiaI ventilator is researched and developed after the analysis and balancing both on domestic T40 product and same product of abroad and have mould．grade triaI researched．it is featured of high efficiency；low noise，it is widely used in general industrial and mining enterprises，warehouse，offices，domestic buildings for air-exchanging of ventilation and forced heat radiating for warm air．

注：以上叶片安装角均为30。 Note：All the setting angles of the above vanes are 30。