6" 8" 10" 12" Suction Air Vent Extractor Fan Bathroom Ceiling Exhaust Fan

                   Built-in Check Valve 

                   Automatic Flip - type upwind flaps to prevent backflow of mosquitoes , dust ,cotton wool , odor ,etc.

                    FEATURES 

                    @ Using highly efficient motor made in Nanyoo ,quality control ,start-up speed ,durable.

                    @ New ABS material panel ,graceful appearance design ,strong corrsion resistance

                   Specifications

                 Easy Installation Effect Display / Manual 

                       Pressure lose and pipe connection

                       Air pressure lose = Pa / m ; Telescopic pipe 8 Pa / m ; PC 5 Pa / m 

                       The following principles should be followed when selecting and installing pipes

                       A , Because the length of the pipeline is not proportional to the pressure loss along the way , 

                       the length of the pipe-line should be minimized (generally not more than 4 m ) .

                       B , Since the number of bends of the pipe is proportional to the local pressure loss ,

                       the number of corners should be reduced as much as possible .

                       C .Since the pressure loss of the circular cross-section is smaller than other shapes ,

                       circular pipes should be used as much as possible .

                     Pipeline installation must not have the following conditions