Fans by Fantech Electronic Catalogue

2016

AXIAL FLOW FANS PERFORMANCE DATA

C-9

INTRODUCTION TO PERFORMANCE DATA GRAPHS

The Elta Impeller data shown on pages C-12 to C-24 in this edition of the catalogue

has been condensed to ensure it remains accurate and current. The graphs show the

AP series

of direct-drive axial flow fans in two impeller configurations for any one fan

size/speed combination. These graphs include the impeller capable of developing the

highest static pressure and an impeller with fewer blades that develops less pressure.

The second configuration would generally be a cheaper, quieter and, possibly, a more

efficient selection.

The performance curves in this section show the free-field sound pressure levels under

spherical radiation conditions in dB(A), 3 metres away, on the outlet side of the fan.

Selecting from these graphs provides a guide only, albeit an accurate one, to possible

selections. Basic noise level data as well as indicative power absorbed figures are

incorporated on the graphs. The final selection for any particular fan is best achieved

by contacting the nearest Fantech sales office, or by using the Fans by Fantech

product Selection Program. The Program will show other possible impeller

combinations between the two illustrated in this catalogue, and will provide full

performance information including air flow, pressure, noise levels, absorbed power

as well as complete dimensional information.

To ensure the information we provide our customers on the Elta Impeller range is up to

date and reflects new product developments and improvements, performance data is

constantly being updated. This updated information is included on the Fans by

Fantech Product Selection Program and Fantech website, the data contained in this

catalogue is correct at the time of print.