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GAS PIPING INSTRUCTIONS (continued)
Pipe Sizing Chart for Natural Gas (0-0.5 psi) with Straight Schedule 40 Metal Pipe
The following chart is based on 0-0.5 psi inlet pressure, specific gravity of 0.6, and a pressure loss of 0.5" w.c.
Pipe Size
Pipe Length
(ft)
10
20
30
40
50
60
70
80
90
100
150
200
Pipe Sizing Chart for Liquid Propane (11" w.c.) with Copper Tubing
The following chart is based on 11" w.c. inlet pressure and a pressure drop of 0.5" w.c.
NOTE: Copper tubing shall comply with standard type K or L of ASTM B 88 or STM B 280.
Pipe Size
Pipe Length
Maximum Capacity of Pipe Size in Btu per Hour
1/2"
3/4"
175,000
360,000
120,000
250,000
97,000
200,000
82,000
170,000
73,000
151,000
66,000
138,000
61,000
125,000
57,000
118,000
53,000
110,000
50,000
103,000
40,000
84,000
35,000
72,000
Maximum Capacity of Tube Size in Btu per Hour
1/2"
(ft)
10
110,000
20
76,000
30
61,000
40
52,000
50
46,000
60
42,000
70
38,000
80
36,000
90
33,000
100
32,000
1"
Maximum Capacity in Btu/hr
680,000
465,000
375,000
320,000
285,000
260,000
240,000
220,000
205,000
195,000
160,000
135,000
5/8"
3/4"
Maximum Capacity in Btu/hr
206,000
348,000
141,000
239,000
114,000
192,000
97,000
164,000
86,000
146,000
78,000
132,000
71,000
120,000
67,000
113,000
62,000
105,000
59,000
100,000
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Copyright 2019 by Southern Pride Distributing, LLC Revision 5
1 1/4"
1 1/2"
1,400,000
2,100,000
950,000
1,460,000
770,000
1,180,000
660,000
990,000
580,000
900,000
530,000
810,000
490,000
750,000
460,000
690,000
430,000
650,000
400,000
620,000
325,000
500,000
280,000
430,000
7/8"
536,000
368,000
296,000
253,000
224,000
203,000
185,000
174,000
161,000
154,000
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