Since most of the pressure build up takes place in the impeller there is generally no need for a scroll housing.
Centrifugal blower fan ebm papst.
The centrifugal fans with backward curved blades are designed as freewheel fans and do not require a scroll housing.
Ebm papst centrifugal fans are available with forward and backward curved blades the quiet running centrifugal fans with forward curved blades are also supplied with a scroll housing.
Like the hyblades the fan blades of the radical centrifugal fans are designed with a dimensionally stable hybrid construction.
Having established itself in the market the radipac series of centrifugal fans from ebm papst is adding new members.
Thanks to aerodynamic improvements all of the fans in the series work with a wide optimum efficiency range and also feature other practical characteristics.
Centrifugal fans with backward curved blades.
The centrifugal fans have very good hydraulic efficiency and a low noise level and are ideally suited for high pressures.
They have high hydraulic efficiency.
Centrifugal fans with backward curved blades are used primarily for intake suction and do not require a scroll housing.
The quiet running centrifugal fans with forward curved blades are also supplied with a scroll housing.
The centrifugal fans with backward curved blades are designed as freewheel fans and do not require a scroll housing.
Ebm papst centrifugal fans with backward curved blades are used primarily for intake suction.