19.04.2014 Views

Axial fans

Axial fans

Axial fans

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

AC axial<br />

K series<br />

Technology<br />

AC axial<br />

A series<br />

Accessories<br />

EC axial <strong>fans</strong><br />

EC axial<br />

S series<br />

Q-motor<br />

ESM<br />

EC-SYSTEMS<br />

AC axial<br />

S series<br />

AC axial <strong>fans</strong><br />

General<br />

information<br />

Diagonal <strong>fans</strong> (axial design)<br />

Operating range<br />

Directly to the right of the "saddle" (right part of the air<br />

performance curve):<br />

– Maximum efficiency<br />

– Minimal noise<br />

To the left of the "saddle" (left part of the air performance curve):<br />

– Stall area<br />

– Drop in efficiency<br />

– Soaring noise<br />

Noise / efficiency curve<br />

[Pa]<br />

[%]<br />

[dB(A)]<br />

The saddle of the diagonal/mixed flow fan is slightly higher than that<br />

of the axial fan. This means that the technical ratings in the optimal<br />

operating range are better than those of the axial fan.<br />

The optimum operating range of the fan is shaded in green in the<br />

curve given here.<br />

0<br />

0<br />

stall area<br />

optimum operating range<br />

[m³/h]<br />

Mounting information<br />

The conical housing (part of delivery) makes sure the necessary gap<br />

dimension is kept.<br />

Effects<br />

The effects of the diagonal/mixed flow fan are similar to those listed<br />

for the axial fan (p. 397-400).<br />

407<br />

Contacts

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!