APPLICATION
Centrifugal fans are classified into three main groups: low, medium and high pressure.
Their application are many and diverse.
DESIGN
The design are based on main group; low,
medium of high pressure. Location of fan base
and design of impeller.
The fan impeller is designed and shaped in
accordance with its application, conditioned by
the required air volume and pressure drop.
The impellers are also classified into four main groups. Also tailor made solutions to meet customers specification, like spark proof design.
EXECUTION
The centrifugal fans are supplied in many
executions of different types of material.
Normally manufactured in steel, primed and
painted. Other materials are sea water resistant aluminium or stainless steel.
The impeller is made of salt- and ammonia
resistant aluminium, aerodynamically shaped
and balanced.
It is performed in four types.
Type B: Backward, convex curved blades
Type F: Forward curved blades
Type Z: Backward, concave curved blades, Scirocco wheel
Type R: Radial blades, for transportation fan.
The air capacities up to 100 000 m3/h
and static pressure up to 30.000Pa
ELECTRIC MOTOR
The fans are usually supplied with standard
squirrel caged inductive electric motor.
They may also be supplied with other types
of electric motors, like explosion proof or
2-speed motors.
ACCESSORIES
- Vibration dampers
- Flexible connections (inlet/outlet)
- Counter flange (inlet/outlet)
- Protection grid (inlet/outlet)
- Flanged inlet
- Drain plug
- Inspection cover
- Foundation (only belt driven execution)
- Motor rails (only belt driven execution)