Forward-curved centrifugalCompact, high flow at moderate pressure. Single and dual inlet.
Backward-curved centrifugalHigher efficiency and pressure. Aluminium and steel impellers.
Plug fansHousingless, for installation directly in an air handling unit.
Blowers and FCU unitsGas heater blowers, commercial blowers and fan-coil unit assemblies.
Forward-curved fans can show a rising pressure characteristic at high flow. That is normal for the type, not a fault — but it means duty point matters more, not less.