What is an axial flow roof fan? When the axial flow roof fan operates at normal temperature, the temperature will be slightly higher, but all of them are within the normal range. This is because the parts of the machine rub against each other and generate heat, which causes the body temperature to be higher. However, not all cases of excessive temperature are caused by the body temperature of normal fan equipment exceeding the normal value, Introduction to electric butterfly valve installed on axial flow roof fan: Model: ZTY-05-A Load range: 1~10kg Elastic coefficient: 0.2mm Applicable deflection: 25mm ZTY-05-A electric butterfly valve Manufacturer: Shanghai Dongfeng Pump Valve Factory Installation method of electric butterfly valve Damping butterfly valve Installation method of damper: 1. The upper part can be fixed