For a proper working condition, they require an housing structure (plenum). The fans shall not be selected with pressures lower than shown on their performance diagram.
• Versions with closed motor.
• Volute in galvanized steel sheet.
• Direct drive double inlet forward curved wheel.
• Single-phase and three-phase motor (only 12/9 and 12/12), IP20, class F. Thermal protection in single-phase versions. Particularly suitable for speed regulation (using the suitable speed regulators shown in this catalogue).
• Outlet flange.
• Fixing feet.