Optimize velocity limit, nominal size selection and allowable pressure drop.
|
4-cycle |
4000 to 6000 FPM |
|
2-cycle |
2000 to 3000 FPM |
| (All 4 & 2 cycle) | |
| Low speed (< 350 RPM) |
4000 to 7000 FPM |
| Medium speed (350 to 1200 RPM) |
6000 to 9000 FPM |
| High speed (> 1200 RPM) |
8000 to 10,000 FPM |
| Turbo charged (All RPM’s) |
5000 to 10,000 FPM |
| Max. allowable |
12,000 FPM |
Centrifugal Compressor
|
Max. pressure drop 2 to 4" w.c. |
3000 to 7500 FPM |
Reciprocating Compressor Intake
|
Single acting |
2000 to 3000 FPM |
|
Double acting |
4000 to 5000 FPM |
5500 to 6500 FPM
Fan
Max. pressure
drop 2 to 4" w.c. 4000 to 7500 FPM
Vacuum Pump Separators
4000 to 6000 FPM
Match connection size of discharge
|
Max. pressure drop 5 to 10" w.c. |
4000 to 8000 FPM |
|
Intermittent |
15,000 to 20,000 FPM |
|
Continuous |
10,000 to 15,000 FPM |
|
Max. allowable |
25,000 FPM |
All recommendations are general good practice guidelines. Consult the factory for special recommendations.
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