Radial-pipe fan with noise-damped casing. Casing made of galvanized sheet steel with round connection supports tuned to standard pipes. Sound-absorbing perforated plate inner lining, deposited with 50mm strong mineral fiber plate. Removable lid Fan compartment and housing spiral freely accessible. Motor and impeller can be pulled out. High performance drum impeller with forward curved blades made of galvanized steel sheet. Vibration-free running through dynamic balancing according to quality grade G 6.3 VDI 2060 and DIN ISO 1940. Single-phase AC external rotor motor, closed design, maintenance-free, speed can be controlled by voltage reduction, built-in thermal contacts, sealed, low-noise ball bearings with long-term lubrication.
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