Backward-Curved Single-Inlet Centrifugal Fans
Product overview
Single-inlet centrifugal arrangement with backward-curved impeller, documented by the selected model.
RAFAVENT CENTRIFUGAL FAN SUBFAMILY
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RAFAVENT RF-CB-SI SERIES
Single-width, single-inlet centrifugal fans with backward-curved impellers for ducted industrial ventilation, filtration and process-air duties.
Welded or formed steel scroll casing with single inlet and backward-curved steel impeller.
Impeller production balancing and vibration acceptance are required before dispatch.
Direct drive is the preliminary basis through size 630; larger sizes use belt or project-engineered drive selection.
Three-phase IEC motor basis, IP55 and Class F specification subject to the approved motor datasheet.
Clean or lightly dust-laden non-corrosive air, preliminary ambient duty −20 to +50 °C. No ATEX, smoke or high-temperature certification is claimed.
Diameter 1600 is available only as custom manufacturing capability after engineering review; it is not part of this standard model series.
Recommended flow and pressure ranges define an intended preliminary selection envelope; they are not opposite corners of a guaranteed duty point. Estimated free-field A-weighted sound pressure at 3 m has ±6 dB(A) uncertainty before duct, reflection, inlet, outlet, guard, silencer and system effects.
Open a model to view its six-point preliminary Q–Ps curve.
Confirm airflow, static pressure, inlet density, temperature, conveyed-air composition, arrangement, rotation and discharge position, drive type, voltage, control method, corrosion class, permissible sound level, access space and accessories before order.
Final dimensions, connection details, materials, motor data and project drawings are issued for the selected configuration after engineering review.