Fuel pipe sizing – Briggs & Stratton 7000 RATED WATTS 040220A User Manual
Page 15
INSTALLATION
15
Fuel Pipe Sizing
Figures 8 and 9 provide the maximum capacity of pipe in
cubic feet of gas per hour for gas pressures of 0.5 psi or less
and a pressure drop of 0.3 in. water column. Specific gravity
of gas is shown.
Listed values compensate for a nominal amount of restriction
from bends, fittings, etc. If an unusual number of fittings,
bends, or other restrictions are used, please refer to federal
and local codes.
NPT
10ft
15ft
20ft
30ft
40ft
50ft
60ft
70ft
80ft
90ft
100ft
1/2”
168
146
115
93
79
70
63
59
55
51
48
3/4”
346
293
240
192
163
145
132
120
113
106
99
1”
653
549
446
360
307
274
250
230
211
197
187
Natural Gas (sg=0.65)
NPT
10ft
15ft
20ft
30ft
40ft
50ft
60ft
70ft
80ft
90ft
100ft
1/2”
110
96
76
61
52
46
42
38
36
33
32
3/4”
277
192
158
126
107
95
87
79
74
69
65
1”
428
360
293
236
202
180
164
151
139
129
123
Liquid Propane (LP) (sg=1.50)
Figure 8 — NATURAL GAS (NG) Pipe Size - Gas Flow Chart, in cubic feet per hour
Figure 9 — LIQUID PROPANE (LP) GAS Pipe Size - Gas Flow Chart, in cubic feet per hour