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Briggs & Stratton Generac Generator Discount Parts Call 606-678-9623 or 606-561-4983
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.
Figure 8 — NATURAL GAS (NG) Pipe Size - Gas Flow Chart, in cubic feet per hour
NPT
10ft
1/2"
168
3/4"
346
1"
653
Natural Gas (sg=0.65)
Figure 9 — LIQUID PROPANE (LP) GAS Pipe Size - Gas Flow Chart, in cubic feet per hour
NPT
10ft
1/2"
110
3/4"
277
1"
428
Liquid Propane (LP) (sg=1.50)
INSTALLATION
15ft
20ft
30ft
146
115
93
293
240
192
549
446
360
15ft
20ft
30ft
96
76
61
192
158
126
360
293
236
www.mymowerparts.com
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.
40ft
50ft
60ft
79
70
63
163
145
132
307
274
250
40ft
50ft
60ft
52
46
42
107
95
87
202
180
164
14
70ft
80ft
90ft
59
55
51
120
113
106
230
211
197
70ft
80ft
90ft
38
36
33
79
74
69
151
139
129
100ft
48
99
187
100ft
32
65
123
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