41
Figure 6-4 Pressure Drop vs. Flow
Table 6B Sizing Information for Temperature Rise Applications_20°F, 30°F, 40°F, 60°F and 80°F
FTX725-850
FTX400-600
0 ft
1 ft
2 ft
3 ft
4 ft
5 ft
6 ft
7 ft
8 ft
9 ft
10 ft
11 ft
12 ft
13 ft
14 ft
15 ft
0 ft
1 ft
2 ft
3 ft
4 ft
5 ft
6 ft
7 ft
8 ft
9 ft
10 ft
11 ft
12 ft
13 ft
14 ft
15 ft
Pr
essur
e Dr
op
(Feet of
Head)
Flow Rate
HEX Pressure Drop
(Full Flow Application)
FTX725-850
FTX400-600
TEMPERATURE RISE APPLICATIONS
Model
MINIMUM
PIPE
SIZE
20°F 30°F
40°F
60°F
80°F
GPM
FT/HD
GPM
FT/HD
GPM
FT/HD
GPM
FT/HD
GPM
FT/HD
400
2"
39
3.5
26
2.8
20
2.5
13
2.4
10
2.3
500
2"
49
4.8
33
3.4
24
2.9
16
2.5
12
2.4
600
2"
59
4.4
39
3.2
29
2.8
20
2.5
15
2.3
725
2 1/2"
71
4.9
47
3.5
35
3.0
24
2.7
18
2.6
850
2 1/2"
83
5.7
55
3.9
41
3.3
28
2.8
21
2.6
6
Hydronic piping
(continued)
Installation & Operation Manual