Do you need a hose connection to connect the ventilation pipe to the exhaust fan? Under what circumstances? Under what circumstances?
The exhaust fan running noise and vibration is relatively large, the wind pipe made of sheet iron, the thin wall affected by the fan vibration will produce two times the noise, so the general air pipe to both sides of fan and soft joints, if no one in the floor or the condition of small diameter pipeline can not be added.
Ventilation ducts and exhaust fans are for people or things, and the noise of vibration is unbearable for people or things.
Must be added, never heard without the place, the wind turbine operation produces vibration, and galvanized sheet steel pipe is fixed at a certain place, if not, fan vibration, wind pipe vibration, the wind tube life are not long.
