Stainless steel fan 220V high temperature resistance small pipe smoke exhaust industry low noise axial flow centrifugal fanType:TAD25-4Specification:250mmFrequency:50HZWind pressure:30PaVoltage:220vAmbient temperature:-40°C --+55°C weight: 4.5 KG Air volume: 840-8700 m3 / hThe motor adopts stamping shell, low noise rolling bearing, long service lifeThe structural parts are made of high quality thin steel sheetRigid, light weight, beautiful and easy to install .CAD optimization designWidely used ventilation in warehouses, workshops and recreation areas10 ", 12 ", 14 ", 16 ", 20 ", 24 "6 specificationsThere are also other type fan on this series as following : pls check what you need.