17
iN401 - iN501 Gas
Connection
May
2019
-
Revision
00
6.10 Gas Pipe Sizing Tables
This information is for reference only. Refer to gas pipe manufacturer specifications for actual delivery capacity. Contact the
local gas supplier for actual BTU/ft
3
rating. This data copied from the National Fire Protection Association Article 54 (NFPA
54).
Pipe Sizes and BTU/h Capacity (NATURAL GAS). Use this table for static gas pressure
LESS THAN 5” W.C.
Length
including
fittings (feet)
3⁄4"
1"
1-1/4"
1-1/2"
2"
2-1/2"
3"
4"
10
360,000
678,000
1,390,000
2,090,000
4,020,000
6,400,000
11,300,000
23,100,000
20
247,000
466,000
957,000
1,430,000
2,760,000
4,400,000
7,780,000
15,900,000
30
199,000
374,000
768,000
1,150,000
2,220,000
3,530,000
6,250,000
12,700,000
40
-
320,000
657,000
985,000
1,900,000
3,020,000
5,350,000
10,900,000
50
-
284,000
583,000
873,000
1,680,000
2,680,000
4,740,000
9,660,000
60
-
257,000
528,000
791,000
1,520,000
2,430,000
4,290,000
8,760,000
70
-
237,000
486,000
728,000
1,400,000
2,230,000
3,950,000
8,050,000
80
-
220,000
452,000
677,000
1,300,000
2,080,000
3,670,000
7,490,000
90
-
207,000
424,000
635,000
1,220,000
1,950,000
3,450,000
7,030,000
100
-
-
400,000
600,000
1,160,000
1,840,000
3,260,000
6,640,000
125
-
-
355,000
532,000
1,020,000
1,630,000
2,890,000
5,890,000
150
-
-
322,000
482,000
928,000
1,480,000
2,610,000
5,330,000
175
-
-
296,000
443,000
854,000
1,360,000
2,410,000
4,910,000
200
-
-
275,000
412,000
794,000
1,270,000
2,240,000
4,560,000
Note: BTU/h capacities are based on specific gravity of 0.6, pressure drop of 0.5” WC
Pipe Sizes and BTU/h Capacity (NATURAL GAS). Use this table for static gas pressure
GREATER THAN 5” W.C.
Length
including
fittings (feet)
1/2"
3⁄4"
1"
1-1/4"
1-1/2"
2"
2-1/2"
3"
4"
10
404,000
949,000
1,787,000
3,669,000
5,497,000
10,588,000
16,875,000
29,832,000
43,678,000
20
286,000
652,000
1,228,000
2,522,000
3,778,000
7,277,000
11,598,000
20,503,000
30,020,000
30
233,000
524,000
986,000
2,025,000
3,034,000
5,844,000
9,314,000
16,465,000
24,107,000
40
202,000
448,000
844,000
1,733,000
2,597,000
5,001,000
7,971,000
14,092,000
20,632,000
50
-
397,000
748,000
1,536,000
2,302,000
4,433,000
7,065,000
12,489,000
18,286,000
60
-
360,000
678,000
1,392,000
2,085,000
4,016,000
6,401,000
11,316,000
16,569,000
70
-
331,000
624,000
1,280,000
1,919,000
3,695,000
5,889,000
10,411,000
15,243,000
80
-
308,000
580,000
1,191,000
1,785,000
3,437,000
5,479,000
9,685,000
14,181,000
90
-
289,000
544,000
1,118,000
1,675,000
3,225,000
5,140,000
9,087,000
13,305,000
100
-
273,000
514,000
1,056,000
1,582,000
3,046,000
4,856,000
8,584,000
12,568,000
125
-
242,000
456,000
936,000
1,402,000
2,700,000
4,303,000
7,608,000
11,139,000
150
-
219,000
413,000
848,000
1,270,000
2,446,000
3,899,000
6,893,000
10,093,000
175
-
202,000
380,000
780,000
1,169,000
2,251,000
3,587,000
6,342,000
9,285,000
200
-
-
353,000
726,000
1,087,000
2,094,000
3,337,000
5,900,000
8,638,000
Note: For 1/2” line BTU/h capacities are based on specific gravity of 0.6, pressure drop of 4.6” WC and 5.0” WC. For all other line sizes, capacities are
based on specific gravity of 0.6, pressure drop of 3.0” WC
Содержание iN401
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