Ft Air Flow 44000m3/H Poultry Exhaust Fan/Centrifugal Exhaust Fan for Poultry Farm and Greenhouse

Features: patented designed centrifugal system which can open and close automaticlly ,ensuring the shutter opens 90 degree under all the condition. And uncontrollable air can prevent from going into the birdhouse when the shutter works. Mirror designed and  injection moulding  Stainless steel balde,with big air volume,never distortion and broken experiment of homeostasis make the blade work smoothly,nearly no noise and steadily output of air centrifugal shutter system made of high quality engineering nylon ,high strength and long service life high efficient and energy-saving motor with ccc certificate ,protection class:IP55,insulation class:F grade Hot-galvanize steel frame with zinc 180g/m2, stainless stell blade with 1.2mm thickness Model specifications Blade mm Blade rotational speed rpm Motor rotational speed rpm Air flow m3/h Total pressure Noise decibels Import power Rated voltage High mm Width mm Thick mm FT-900 (30in) 750 438 1400 22000 65 ≤65 550 380 900 900 450 FT-1000 (35in) 900 438 1400 30000 70 ≤70 750 380 1000 1000 450 FT-1100 (40in) 900 438 1400 32000 70 ≤70 750 380 1000 1000 450 FT-1380 (50in) 1250 437 1400 44000 56 ≤70 1100 380 1380 1380 450