No Power Roof Turbo Fan Wind Turbine Ventilator for Warehouse with Base Plate 500mm

Product Name: No Power Roof Turbo Fan Wind Turbine Ventilator for Warehouse with base Plate 500mm Model NO.: 500mm Certification: ISO, CE, CCC Mounting: Roof Fan Electric Current Type: AC Type: Axial Fan Blade Material: Stainless Steel Material: Stainless Steel Ball Dia: 620 Throat Dia: 500 Bearing: NSK Bearing or Ubc Bearing Weight: 7.8kgs Usage: Ventilation Trademark: TG Transport Package: Standard Export Carton Specification: 500mm Origin: China HS Code: 84145930 Product Description TG-500 Roof Turbine Air Ventilator Aluminum AlloyReference:1. The ball diameter is 620mm.2. The throat diameter is 500mm.3. The base platesize is 650mmX750mm4. Our ventilators are made of stainless steel,Aluminum and fluorinecarbon coated. And we guarantee the usage for 15 years.5.The UBC bearings we use a15 YEARS QUALITY WARRANTY !!!!!!!!!!!!TIANCHANG TG TURBINE VENTILATION Co., Ltd is a long history company on main business of rooftop turbine ventilators.The Operating Theory of TG Turbine Ventilators:The undulating vanes lead to smooth rotation by light wind. The bearings at lower and upper position make smooth turns.The motility created by the rotation of the vanes brings the hot air, smoke and wet air up to the roof and exhausts them he turbine is went on rotating, the fresh air outdoor can enter into the room continually so that the room can ventilate conveniently.The single rotating mechanism will work normally except there is the severe natural damage during 15 years.