Brochure

100
90
80
70
60
50
40
30
20
10
0
0 200 400 600 800 1000 1200
Flow in GPM
First Pass
% of Air Removal
B&G
Competitor-A
Competitor-T
Competitor-W
Competitor-S
Typical flow
through 6”
pipe
(All performances as tested by B&G)
6” Separators
Cv Comparison
(w/o strainer)
B&G
B&G RL-6
850
Competitor-A 720
Competitor-T 750
Competitor-W 410
Competitor-S 500
In a side-by-side test we compared first pass
air removal efficiency to flow rate between a
Bell & Gossett RL-6 and four competing air
separators: Competitor A, T, W, and S. The results:
The Bell & Gossett Rolairtrol removes more air per
pass than any other air separator. The patented
design uses a combination of centrifugal force and
velocity reduction to maintain high air removal
efficiency over a broader band of flow compared
to any other design.
As illustrated in the graph above the Rolairtrol has the highest air removal efficiency across the flow range.
The area that is shaded in blue is the typical flow range that commercial HVAC engineers design for a
6” pipe. The Rolairtrol is designed for typical HVAC applications. You don’t have to have an 8” Rolairtrol
for a 6” line. Using any other brand of air separator will require a larger size vessel for the same air removal
efficiency. Some competitors limit the flow rate to ranges well below typical HVAC designs this will result
in the selection of a larger sized vessel plus pipe reducers to match flange sizes. The B&G Rolairtrol won’t
need extra pipe fittings, saving installation cost. More money in extra fittings and energy bills can be saved
when the Rolairtrol is provided with the integral strainer. When a non-integrated strainer is installed in the
system, extra unnecessary pressure losses are added to the system meaning more pump horsepower,
and the installer has to buy more pieces and add more labor.
6
Air Separation Efciency Comparison
Rolairtrol vs. Competition