Radial blowers and pumps operate on the dynamic principle of using the velocity of air to create pressure or a vacuum.

Suitable for applications requiring pressure, vacuum or pressure/vacuum simultaneously

Vacuum up to -115 mbar and low pressure up to 125 mbar, with capacities from 130 to 3,400 m³/hr.

Air-cooled, non-contact operation for reduced wear and virtually maintenance-free service

Single-stage and multi-stage models available

Technical Overview
Radial blowers operate using a dynamic principle, basically this means that the velocity of air is changed into pressure.

This method has proved very successful for the generation of both low vacuum and pressure combined with relatively large capacities. Single stage and multi stage models produce vacuum up to 96 mbar or pressure up to 125 mbar. Capacities range from 130 to 3,400 m³/hr. Radial blowers are air cooled and non-contact operation means there is no wear, making the design virtually maintenance-free.

The Radial Blower Principle.
As soon as the impeller starts rotating, the air in the blade chamber (1) of the impeller (2) is directed in a centrifugal outward movement and exists at the edge of the impeller (3). Therefore in the centre (4) of the impeller a suction is created causing air to flow in from the inlet port (5). At the hub (6) this entering air is deflected from an axial into a radial direction, and enters into the blade chambers (7). Due to the high speed on the impeller circumference , the air flows outward into the spiral housing (8).

At this point the velocity is reduced with part of the energy transferred into compression energy. Inside the spiral housing an airstream is created. Its energy comes partly from its high speed and partly from the produced over pressure. The airstream flows through the outlet (9) of the spiral housing into the pressure line and is transported to the workplace.

For vacuum operation, a pipe line is connected to the suction port, (5) of the blower. When the suction opening is throttled, a vacuum is produced in the suction line. With this method of operation, the impeller again produces a pressure increase, but this time from vacuum to atmospheric pressure. At a higher motor speed, for example 60Hz operation instead of 50 Hz, both capacity and pressure difference are increased. The performance of the blower and subsequently the required motor power are also increased considerably.