... Volume:3300~53000m3/h,Pressure:62Pa~350Pa,Power:0.37kw~5.5kw,Voltage:380V/440V/OtherCentrifugal Fan ordinary roof WT4- ... -2-B51.13.151400206-68.616.8-31.564-67Y801-4-B50.5541400330.5-113.834.18-64.173-75Y801-4 ... PaFlow m3/minNoise dB MotorTypePower kw2.81450194.2-78.513.5-24.353-54YBDW/YDW-14A0.124920166.7-78.525- ... 5054-56YBDW/YDW-36A0.256.3750431.5-166.7100.8-201.669-72YBDW/YDW1.8-61. ...