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Sizing Between 1
st
and 2
nd
Maximum propane capacities listed are based on 1 psig pressure drop at 10 psig setting. Capacities in 1,000 Btu/h.
Propane Gas Pipe Sizing Chart I
Tubing Size, O.D., Type L
Pipe or Tubing
³⁄₈"
Length—ft (m)
30 (9.2)
309
40 (12.2)
265
50 (15.2)
235
60 (18.3)
213
70 (21.3)
196
80 (24.4)
182
90 (27.4)
171
100 (30.5)
161
150 (45.7)
130
200 (61)
111
250 (76.2)
90
300 (91.4)
89
350 (106.7)
82
400 (121.9)
76
To convert to capacities at 15 psig settings—multiply by 1.13. To convert to capacities at 5 psig settings—multiply by 0.879.
Sizing Between Single or 2
Maximum propane capacities listed are based on ¹⁄₂" W.C. pressure drop at 11" W.C. setting. Capacities in 1,000 Btu/h.
Propane Gas Pipe Sizing Chart II
Pipe or Tubing Length—ft (m)
10 (3)
20 (6.1)
30 (9.2)
40 (12.2)
50 (15.2)
60 (18.3)
80 (24.4)
100 (30.5)
125 (38.1)
150 (45.7)
200 (61)
250 (76.2)
300 (91.4)
350 (106.7)
400 (121.9)
Data in accordance with NFPA pamphlet Number 54.
Stage Regulator*
¹⁄₂"
⁵⁄₈"
700
1,303
599
1,115
531
988
481
896
446
824
412
767
386
719
365
679
293
546
251
467
222
414
201
378
185
345
172
321
nd
Stage Regulator and Appliance*
Tubing Size, O.D. Type L
³⁄₈"
¹⁄₂"
⁵⁄₈"
49
110
206
34
76
141
27
61
114
23
52
97
20
46
86
19
42
78
16
36
67
14
32
59
12
28
52
11
26
48
10
22
41
9
19
36
8
18
33
7
16
30
7
15
28
³⁄₄"
⁷⁄₈"
2,205
3,394
1,887
2,904
1,672
2,574
1,515
2,332
1,394
2,146
1,297
1,996
1,217
1,873
1,149
1,769
923
1,421
790
1,216
700
1,078
634
976
584
898
543
836
Nominal Pipe Size Schedule 40
³⁄₄"
⁷⁄₈"
¹⁄₂"
348
539
291
239
368
200
192
296
161
164
253
137
146
224
122
132
203
110
113
174
94
100
154
84
89
137
74
80
124
67
69
106
58
61
94
51
55
85
46
51
78
43
47
73
40
Nominal Pipe Size, Schedule 40
¹⁄₂"
³⁄₄"
1,843
3,854
1,577
3,298
1,398
2,923
1,267
2,649
1,165
2,437
1,084
2,267
1,017
2,127
961
2,009
772
1,613
660
1,381
585
1,224
530
1,109
488
1,020
454
949
³⁄₄"
1"
1¹⁄₄"
608
1,146
2,353
418
788
1,617
336
632
1,299
284
541
1,111
255
480
985
231
436
892
198
372
764
175
330
677
155
292
600
141
265
544
120
227
465
107
201
412
97
182
374
89
167
344
83
156
320
1¹⁄₂"
3,525
2,423
1,946
1,665
1,476
1,337
1,144
1,014
899
815
697
618
560
515
479
9
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