RAF aluminum roof fan JRTC proof aluminum roof fan

Name: RTC all aluminum roof centrifugal exhaust fan use: roof ventilation, centralized exhaust duct, fire exhaust air volume range:? 600 55000 m3 / h Static pressure range: 100 1000Pa Drive Type:? Belt drive / direct connect drivers Installation: Roof flashings installed RAF aluminum roof fan JRTC proof aluminum roof fan: 1. Impeller: Roof centrifugal fan should be used after dumping aluminum centrifugal impeller, impeller inlet venturi tube and pan should hydrology venturi close with impeller shall be subject to static and dynamic balance, to meet international standards ISO 1940 G2.5 levels. 2. The fan casing: aluminum roof fans at RAF JRTC proof aluminum roof fan housing is made of aluminum alloy sheet support its hood withstand rugged wind load, the shape of the curved hood, effectively block the rain, out of the wind to reduce resistance generated, thereby reducing the amount of wind noise and ensure access without resistance on its internal structure can prevent rain or snowmelt leaking. 3. Drive: After powder coating corrosion of steel support RAF aluminum roof fan JRTC proof aluminum roof fan drives thick and mounted on shock absorbers. Fan shaft precision polishing and balance, which is designed to run faster than the maximum speed of the fan at least 25%. In accordance with the size of the drive pulley 150% power selection, cast iron pulley is connected to the shaft through the key. Motor pulley system should be adjusted in order to balance the scene. 4. Motor: RAF aluminum roof fan JRTC proof aluminum roof fan motor should work closely with the fan load, IP54, insulation class F, class B temperature rise. And motor driving means disposed outside the gas stream, the gas stream in order to avoid the accumulation of grease or dust. Fresh cold air from the exhaust air without some areas where the introduction of the motor cavity to cool the motor. Fresh air is introduced by the fan impeller attached to the motor through the gap under the hood