产品介绍：4-72型离心式通风机可输送空气和其他不自燃的、对人体无害的、对钢材无腐蚀性的气体。气体内不允许有粘性物质，所含尘土及硬质颗粒物不大于150mg/m3。气体温度不得超过80℃。该风机具有良好的气动性能、运转平衡、振动小、效率高、寿命长等特点。广泛适用于工矿企业、大型建筑物、宾馆酒楼等室内通风换气。B4-72型为防爆型离心式通风机，主要由铝叶轮、机壳、进风口等部分与防爆电机组成，可作为易燃挥发性气体的通风换气之用，其性能与安装尺寸同于4-72型。Model 4-72 centrifugal fan can convey ai r and other non-hypergolic gas which are not harmful to the human body and wilI not corrode steeI materials．The adhesive materials are not allowed in the gas．Its containing dust and hard particles should not exceed 150mg/m3．gas temperature not exceed 80。C．1t has sound pneumatic performance．Therefore it has features such as balanced running，little vibration，high efficiency，long life etc．It is widely applicable for the indoor ventilation air．exchange．exhaust in the industriaI mining and enterprises，large-size architectures，guesthouses，restaurants etc．Model B4-72 iS an explosion-proof type centrifugal ventilator. It is mainly composed Of aluminum paddle-wheel，casing，air inlet etc．and the explosion-proof motor．It can be used as ventilation and air-exchange to the inflammable and volatilizing gas its peIrformance and．foundation size are the same as Model 4-72.Model