DDM

Double inlet centrifugal fan, direct drive, impeller (drum rotor) with forward curved blades. Galvanised sheet steel fan casing (EN10142), connected using a high-tech roller bonding process. Straight tongue in the fan outlet. Impeller with forward-curved blades, made of galvanised sheet steel, mounted directly on the rotor of an external rotor motor. Motor in closed version, protection class IP 54, for connection to three-phase AC mains, voltage controllable, suitable for mains connection 400 V, 50 Hz. Built-in thermal contacts on request. Maintenance-free, vibration-insulated, self-aligning ball-bearing mounted motor and impeller. Impeller dynamically balanced according to DIN ISO 21940-11. Mounted with ready-to-connect terminal box. Characteristics according to AMCA 210-99 (Fig. 12), UNI 10531 (Fig. 30c and part 29.2 f) or ISO 5801 (Fig. 69c and part 30.2 f).

These types of fans are specifically designed for use in dust-free environments, at temperatures up to +40°C or higher on selected models. Performance data was obtained in an AMCA registered laboratory for AMCA 210/99 air performance testing . Data is not certified by AMCA.