Single-Inlet Forward-Curved Centrifugal Fans
Product overview
Single-inlet, single-width (SISW) forward-curved centrifugal fans for model-specific ventilation duties.
RAFAVENT CENTRIFUGAL FAN SUBFAMILY
SISW · SINGLE INLET · SINGLE WIDTH
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RAFAVENT RF-CF-FWD SERIES
Compact forward-curved centrifugal fans for cabinets, AHUs and low-to-medium pressure HVAC supply or extract duties.
Formed steel scroll casing with single inlet and multi-blade forward-curved wheel; double-inlet execution requires separate engineering.
Wheel balancing and vibration acceptance are required before dispatch.
Direct or belt drive by arrangement. Confirm drive side, clockwise/counter-clockwise rotation and discharge position when viewed from the inlet.
Motor table shows rated output, not absorbed electrical input. VFD use requires motor and minimum-speed confirmation.
Preliminary clean-air ambient duty −20 to +50 °C. No ATEX, smoke, furnace or high-temperature certification is claimed.
Standard model series Ø200–Ø800. Sizes 900–1000 are custom only after structural, shaft and motor review.
Forward-curved fans can have rising motor demand toward open flow. Motor selection includes a preliminary 15% margin but final absorbed-power review across the operating range is mandatory. Estimated sound at 3 m has ±6 dB(A) uncertainty before casing, duct and system effects.
Open a model to view its six-point preliminary Q–Ps curve.
Confirm airflow, static pressure, air density, temperature, inlet arrangement, drive side, rotation, discharge position, motor rated output, voltage/phase, VFD method, operating range, corrosion class, permissible sound level and access space before order.