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Nautilair® 12.3" Combustion Blowers

AMETEK DFS Nautilair 12.3" blowerThe Nautilair® 12.3" Combustion Blower can reach pressures up to 20" of H2O and flow rates up to 1,000 CFM. This blower weighs 28 lbs and is available in standard, high output and enhanced versions. Customization is available for OEM products.

Need a Nautilair® 12.3" with a stronger magnet, higher efficiency and lower sound? Try the Nautilair® 12.3" Combustion Blower - High Energy.

These blowers upgraded from a Ferrite to Neodymium magnet, which are three times stronger. The new design can also incorporate an impact-resistant plastic cover with an exhaust tube, which increases overall efficiency and reduces sound up to 14 dB. Customization is available for OEM products.

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  • Design Options +

    Performance Voltages Speed Control Options Speed Regulation Stages Agency Certification

    Max Flow:
    1,000 CFM (1699 m3/hr)

    Max Pressure:
    20 inch H2O (50 mbar)

    120 VAC
    240 VAC
    240 VAC; Three-Phase
    380-480 VAC; Three-Phase  
    380-575 VAC; Three-Phase
    208 VAC; Three-Phase

    Mechanical -POT adjustment
    0-10 VDC
    4 to 20 mA
    Remote Potentiometer

    Open Loop

    Closed Loop







    Operating Temp:
     0oC to 50oC   
    Storage Temp: -40oC to 85oC
    Weight: 7.8 lbs/3.5Kg

    Design Features: Designed to provide variable airflow for low NOx and CO emissions in high efficiency gas-fired combustion systems. Built with non-sparking materials. Blower housing assembly constructed of die cast aluminum. Impeller constructed from hardened aluminum. Rubber isolation mounts built into the blower construction to dampen vibration within the motor. Two piece blower housing assembly sealed with O-ring gasket fro combustion applications. Customer is responsible to check for any leakage once the blower is installed in the final application. Intake and exhaust tubes, all cooling ducts and vents must not be obstructed. Intake and exhaust must be free of grease, oil and foreign particles. Blower to be mounted so ventilation air cannot be recirculated.