5-571.4
16
16
Pressure DroP curves
figure 16.1
low air temperature rise Duct furnace Pressure Drop vs. cfm curves
0
0.2
0.4
0.6
0.8
1
1.2
1.4
0
1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 13000 14000 15000
cfm
Pressure Dr
oP
(P "
W
.C
.)
75
100/125
150/175
200/225
250/300
350/400
Caution:
Do not exceed the CFM ranges
indicated in Table 15.1