CleaverBrooks CFC-500 Operation, Service And Parts Manual page 42

Section 2 — Installation
Pressure - PSI
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0 44 66 88
Figure 2-35 Pressure Drop Curve, CFC 2500, U.S. Flow Rates
Table 2-12: Maximum flow rate through ClearFire boilers (U.S. flow rates)
10
Boiler
Size
500 95
131
750
176
1000
260
1500
351
1800
2500 470
Recommended flow rates relative to temperature drop so as not to exceed boiler output.
2-28
Hydraulic Resistance CFC 2500
U.S. Standards
118 132 154 176 198
System Temperature Drop
20 30 40 50
48 33 24 19
66 44 33 26
88 59 44 35
130 87 65 52
176 117 88 70
235 157 118 95
220 242 264 286 308
Flow - GPM
0
F
60 70 80
Flow Rate GPM
16 12 11
22 19 16
29 25 22
43 37 33
59 50 44
79 67 59
330 352 375 395
90 100 110 120
10.5 9 8 7
15 13 12 11
20 18 16 15
29 26 24 23
39 35 32 30
52 48 43 39
Part No. 750-263
420 474