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Backward Curved Centrifugal - Single inlet - standard motor

Design

Backward curved impeller fans with motors out of the airstream are suitable for a wide range of medium to high pressure ducted applications. Their impellers are capable of handling light dust in the airstream and have a high efficiency, non-overloading characteristic. This means that maximum power is drawn when operation is close to the middle of the fan pressure/volume flow characteristic. The motors are a standard industrial type, normally IP55 protection class, for three phase electrical supply.

Speed control is possible by variable frequency inverter drive, the size and cost of the inverter being minimised by this high efficiency, low power consumption fan.

Application

General air extraction systems, dust filtration units

Technical Specification

Specification Description
Pressure

Medium

Speed Control

Frequency inverter

Mounting

Scroll housing, inlet flange, discharge flange

Impellers

Backward-curved, low energy consumption

Features

Clean air or light dust in airstream. 120°C standard; 250°C special

Protection

IP54/IP55 standard + specials

Size

Ø250 to 800 impeller

Supply

Single and three phase models

Motor Type

Standard, out of airstream

Flow Rate

34000m³/h maximum

Pressure

1200 Pascals maximum