FBF Series performance
Instructions
The selection chart provided contains an array of popular sizes for quick sizing. It does not provide curves for all models available. Refer to page 34 & 35 for detailed calculation information. Computer selection data sheets for standard or special models are avail- able through the engineering department of American Industrial. To use the followings graphs correctly, refer to the instruction notes "1-5". 1) HP Curves are based upon a 40°F approach temperature; for example: oil leaving a cooler at 125°F, using 85°F cooling water (125°F – 85°F = 40°F ). 2) The oil to water ratio of 1:1 or 2:1 means that for every 1 gallon of oil circulated, a minimum of 1 or 1/2 gallon (respectively) of 85°F water must be circulated to match the curve results.
3) OIL PRESSURE DROP CODING: = 5 psi; = 10 psi; = 20 psi; = 50psi. Curves that have no pressure drop code symbols indicate that the oil pressure drop is less than 5 psi for the flow rate shown. 4) Pressure Drop is based upon oil with an average viscosity of 100 SSU. If the average oil viscosity is other than 100 SSU, then multiply the indicated Pressure Drop by the corresponding value from corrections table A.
5) Corrections for approach temperature and oil viscosity are as follows:
40 Actual Approach
Removed In Cooler
Actual Heat Load
H.P.(
) = H.P.(
) x (
) x B.
500
VISCOSITY CORRECTIONS
15 16
400
Avg. Oil SSU
A
B
50
0.83 0.84 1.00 1.00 1.30 1.14 1.70 1.24 2.10 1.31 2.50 1.37 2.80 1.42 3.20 1.46 3.60 1.50 4.00 1.53 4.40 1.56
300
100 200 300 400 500 600 700 800 900
14
11
13
200
10
9
12
1000
8
70 80 90 100
6
7
5
60
3
50
Oil/Water Ratio
Model
4
1. 2. 3. 4. 5. 6. 7. 8.
FBF-1014-1.5 - 6-FP 2:1 FBF-1014- 3 - 6-FP 2:1 FBF-1024- 2 - 6-FP 2:1 FBF-1024- 4 - 6-FP 2:1 FBF-1036- 6 - 6-FP 2:1 FBB-1048- 5 - 6-FP 2:1 FBF-1224- 4 - 6-FP 2:1 FBF-1236- 6 - 6-FP 2:1
40
30
1
2
9. FBF-1248- 6 - 6-FP 2:1 10. FBF-1260- 6 - 6-FP 2:1 11. FBF-1272- 6 - 6-FP 2:1 12. FBF-1624- 6 - 6-FP 2:1 13. FBF-1636- 6 - 6-FP 2:1 14 FBF-1648- 8 - 6-FP 2:1 15. FBF-1660- 7.5 - 6-FP 2:1 16. FBF-1672- 9 - 6-FP 2:1
20
10
8 9 10
20
40
60
80 100
200
300
GPM (Oil Through Cooler)
note: AIHTI reserves the right to make reasonable design changes without notice.
59
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tel: 434-757-1800 355 American Industrial Drive LaCrosse, VA 23950
email: sales@aihti.com fax: 434-757-1810
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