butterfly cone fan for poultry house ventilation cooling fan with CE
1. Advanced front double door design, small wind resistance,highefficiency,goodsealing.2)Theconepartadoptsplugtypeconnection,anddonotneedmanyboltsandnutsfortighteningas before, which reduce intensity of labor and improve aesthetic extent offan.3)When the two semicircle shutter doors close, the rubber sealing ring makes good air tightness, which can avoid effectively the outside air from entering the room from other unworking fans and improve the working efficiency of15-20%.
4)Blade: 6 pieces of mirror finished stainless steel blades, attractive and durable with big air volume,, low noise, no distortion, nobroken5)Belt tensioner: made of high quality aluminum-magnesiumalloy,avoiding belt loosening or dropping off, extending service life of the belt and avoidingdistortion.6)Motor: high efficient and energy-saving with CCC certificate. Protection class: IP55, Insulation class:F.
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