CAGI Data Sheets An apples to apples performance comparison0 pages

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CAGI Data Sheets
An apples to apples performance comparison
Werner Rauer, Compressors Product Manager
Kaeser Compressors, Inc.

Comparing compressor performances across different manufacturers has long been a difficult
task. For many years, it was all too easy to present data that, although accurate, was potentially
misleading. Manufacturers were selective about
what information they published as well as what
conditions they chose to specify performance. The
result was a numbers game that the buyer frequently lost.

Performance Verification and
Data Sheets

Fortunately, the Compressed Air and Gas Institute
(CAGI), in cooperation with its members, has
developed a tool for a fair comparison between
compressors. CAGI is a non-profit organization of
competitive companies that manufacture air and
gas compressors and related equipment. CAGI
seeks to educate end-users to promote effective,
safe, and energy efficient uses of compressed air
and gases.

Under the Rotary Compressor Performance
Verification Program, rotary compressors are
tested according to ISO 1217 (Annex C for fixed
speed compressors and Annex E for variable
speed compressors). There is a standard form for
participating members to publish their compressor
performance information and the values published
on the form are then subject to third party testing
and verification.

CAGI members have worked closely with several standards development bodies such as
PNEUROP (CAGI’s European counterpart) and
the International Organization for Standardization
(ISO) to develop key standards for compressed air
and gas systems equipment.

Kaeser publishes its performance data sheets
on dedicated webpages, as do other participating manufacturers. In addition, CAGI publishes
the links to the manufacturers’ data sheets on its
website at www.cagi.org/performance-verification/
data-sheets.aspx.
CAGI data sheets are a huge help in selecting
the most energy efficient compressor. By standardizing the values recorded and how the measurements are taken, it is possible to make clear
“apples to apples” comparisons between two or
more models. The bottom line on the data sheet
is the “Specific Package Input Power at Rated
April 2013

Kaeser Compressors, Inc. § 877-586-2691 § www.kaeser.com

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