50 PNEG-308 Purafire
15. Examples
Example 1
Determine the pipe sizing for a 2 PSI Natural Gas installation.
Because the appliance near junction N is farthest away from the gas meter, use this distance.
Section A-N is 95' long. Use the 100' line on the “Natural Gas @ 2 PSI” chart.
NOTE: Sections I-K, C-H, and D-F are identical to the section L-N and should also use 1" pipe.
Figure 15A
Section BTU Demand Pipe Size
A-B 1220 1-1/4"
B-D 305 1"
B-C 915 1-1/4"
C-I 610 1"
I-L 305 1"
L-M 305 1"
M-N 80 1"
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