Free Engineering Tool

EC Centrifugal Fan Selector

Enter a required airflow, static pressure, voltage and control interface, or look up an existing EC centrifugal fan model number. The selector checks catalog data across 55 currently published catalog variants in Proventofan's 13 EC centrifugal fan frame sizes (133mm–560mm) and flags exactly what still needs curve or drawing confirmation before ordering.

Match an EC centrifugal fan

Duty point and installation inputs
Modbus RS-485 is standard from 220mm up. 133/175/190mm are PWM + 0-10V only in the current catalog.
This is the impeller/nominal size class (e.g. 400 = the 400mm frame), not the full outer dimension, inlet or installation depth. Confirm the dimensional drawing separately.
Only select 310mm and 355mm models publish a separate L/Y designation. For every other model, orientation is not published — the selector keeps them as candidates but flags orientation for engineering confirmation rather than treating them as a match.
Preliminary result
Catalog candidates will appear here.The selector does not issue a final model approval or replace the characteristic curve and dimensional drawing.
Preliminary catalog screening: each result compares your inputs with airflow and static-pressure figures published for one catalog model at one RPM. This is not a fan-curve duty-point validation. Confirm the characteristic curve, dimensional drawing and voltage range before ordering.

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