AA & STA Series performance
Instructions
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.
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 24 & 25 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
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.
HEAT ENERGY DISSIPATION RATES (Basic Stock Model)
31
36
VISCOSITY CORRECTIONS
300
Avg. Oil SSU
A
B
34
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
29
100 200 300 400 500 600 700 800 900
200
22 23
28
33
21
37
32
35
100 90 80 70 60 50 40
30
20
18
1000
27
10
16
26
Oil/Water Ratio
25
Model
1. 2. 3. 4. 5. 6. 7. 8. 9.
408-2-4-SP 408-1-4-SP 608-2-4-FP 614-4-4-FP 624-4-4-FP 608-1-4-FP 624-2-4-FP 814-3-4-FP
1:1 1:1 2:1 2:1 2:1 2:1 2:1 2:1 2:1
19 14
11
9
30
12
15
24
8 5
17
614-1.5-4-FP 2:1
13
20
10. 824-4-4-FP 11. 836-4-4-FP
2:1 12. 814-1.5-4-FP 2:1 13. 824-2-4-FP 2:1 14. 836-2-4-FP 2:1 15. 1014-3-6-FP 2:1 16. 1024-4-6-FP 2:1 17. 1036-4-6-FP 2:1 18. 1024-2-6-FP 2:1 19. 1036-2-6-FP 2:1 20. 1224-4-6-FP 2:1 21. 1236-6-6-FP 2:1 22. 1248-6-6-FP 2:1 23. 1260-6-6-FP 2:1 24. 1224-2-6-FP 2:1 25. 1236-3-6-FP 2:1 26. 1248-3-6-FP 2:1 27. 1260-4-6-FP 2:1 28. 1624-6-6-FP 2:1 29. 1636-6-6-FP 2:1 30. 1648-6-6-FP 2:1 31. 1660-6-6-FP 2:1 32. 1672-6-6-FP 2:1 33. 1624-2-6-FP 2:1 34. 1636-3-6-FP 2:1 35. 1648-3-6-FP 2:1 36. 1660-4-6-FP 2:1 37. 1672-4-6-FP 2:1
7 4
15
3
10
6
9
8 7 6 5 4
2
1
3
2
3
4
5 6 7 8 9 10
15 20
40
60
80 100
200
GPM (Oil Through Cooler)
note: AIHTI reserves the right to make reasonable design changes without notice.
48
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355 American Industrial Drive LaCrosse, VA 23950
tel: 434-757-1800
fax: 434-757-1810
email: sales@aihti.com
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