Minimum Pipe Sizes For Multiple Boiler Applications - NTI FTV110 Installation And Operation Manual

Boiler and Heating System Piping
Table 13-1 Minimum Pipe Sizes for Multiple Boiler Applications
FTV110
# of Units
2 1-1/4"
3 1-1/2"
4
5
6 2-1/2"
7 2-1/2"
8 2-1/2"
9 2-1/2"
10
11
12
13
14
15
16
Note: Minimum pipe size based on assumed temperature rise of 25ºF at
maximum firing rate.
56
│
FTV150
Pipe Size
1-1/2"
2"
2" 2"
2"
2-1/2"
2-1/2"
3"
3"
3"
3" 3"
3" 3"
3" 4"
3" 4"
3" 4"
3" 4"
3" 4"
FTV190
2"
2"
2-1/2"
2-1/2"
3"
3"
3"
3"
4"
4"
4"
4"
4"
4"
4"
FTV I&O Manual