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TEKLEEN ®NEWSLINE ^
FEB 2003
Why Should You
Filter Your Water?
ool, clear water is the life force in manufacturing operations. It cools, cleans, and can be counted
on to run pure and steady - unless it becomes contaminated with dirt and other pollutants, in which
case it can gum up a system, increase the friction losses
and induce erosion corrosion & wasting energy by increasing the demand for a higher flow rate to offset the lost capacity due to scaling, impede operations,
lowering the thermal efficiency of the system and even
impair the quality of the products being made.
Water filtration is one of the most effective and least
expensive ways to solve equipment fouling and scaling
problems caused by dirty water. Heat exchangers, molds, pipes, tubing, sensors, monitors, and other parts become
fouled when dirt particles in the water settle out on
warm surfaces. Calcium and magnesium are the bonding
elements that cement the dirt onto the equipment.
Chemical analysis shows that the calcium and magnesium are less than 2%, while the rest is made up of airborne
particles, rust, sand, biological organisms, and other
contaminants. Scale formation reduces the heat transfer
rate and increases the water pressure drop through the heat exchanger and pipes. In fact, one study has shown
that .002" fouling will increase pumping needs by 20%.
The following tables show these relationships.
Relation between fouling (scale) to percent increase in pumping
Cooling water pipes after less than one year's operation without filtration
Max Recommended Flow Rates
(m3/h) with 1 psi drop For GPM, multiply by 4
Model
10M
35m
50m
100m
2L
10
15
25
30
4
15
25
40
80
4L
50
70
100
130
6L
50
70
100
250
6XL
80
100
150
250
8
50
100
200
350
8L
80
100
300
400
10
-
-
200
450
12
-
-
300
600
14
-
-
400
1,000
16L
-
-
600
1,500
Water quality is city drinking water.
170 160 150 140 130 120
110
CONTACT INFORMATION: Automatic Filters, Inc. 2672 S. La Cienega Blvd. Los Angeles, CA 90034 T (310) 839 2828 T (800) 336 1942
F (310) 839 6878
info@tekleen.com www.tekleen.com
© 2003 Automatic Filters, Inc. Tekleen and the Tekleen logo are trademarks of Automatic Filters, Inc. U.S.A.
CLEAN 002 .004 .006 .008 Fouling factor (scale) in inches

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