Centrifugal extractor fan for rectangular duct systems
SIGMA
Rosenberg Ventilatoren
-duct dimensions 400x200 bis 1000x500 mm
-max. V= 11000 m³/h,
-max. pt= 1300 Pa
-100% speed controlable
-backward curved impeller
-swing out drive unit
-with sound attenuated casing
Application:
ventilation for residential and industrial zones
