Model 4
1500 - 6000 MBTU/hr
Rev. 03-08
Section B2-22
Table
B2-16.
Gas line capacity
-
Schedule
40
metallic
pipe
Pipe Size
Nominal
1
"
1-1/4
"
1-1/2"
2"
2-1/2"
3
"
4"
Actual I.D.
1.049
1.380
"
1
.61
0
"
2
.067"
2.469
"
3
.06
8
"
4
.0
26"
Length
in feet
**
Maximum
Capacity
in
Cubic Feet of Gas per Hour
(cfh)
10
514
1,060 1,580 3,050 4,860 8,580
17,500
20
363
726 1,090 2,090 3,340 5,900
12,000
30
284
583 873 1,680 2,680 4,740
9,660
40
243
499 747 1,440 2,290 4,050
8,290
50
215
442 662 1,280 2,030 3,590
7,330
60
195
400 600 1,160 1,840 3,260
6,640
70
179
368 552 1,060 1,690 3,000
6,110
80
167
343 514 989 1,580 2,790
5,680
90
157
322 482 928 1,480 2,610
5,330
100
148
304 455 877 1,400 2,470
5,040
125
131
269 403 777 1,240 2,190
4,460
150
119
244 366 704 1,120 1,980
4,050
175
109
209 336 648 1,030 1,820
3,720
200
102
185 313 602 960 1,700
3,460
**Fuel:
Natural
Gas
**Inlet
Pressure: Less than
2.0 psi
**Pressure Drop:
0.30" w.c.
**Specific Gravity:
0.60
Table
B2-17.
Gas line capacity
-
Schedule
40
metallic
pipe
Pipe Size
Nominal 1" 1-1/4" 1-1/2" 2" 2-1
2" 3" 4"
Actual I.D. 1.049" 1.380" 1.610" 2.067" 2.469" 3.068" 4.026"
Length in feet **Maximum Capacity in Cubic Feet o
Gas per Hour (cfh)
10
678 1,390 2,090 4,020 6,400 11,300 23,100
20
466 957 1,430 2,760 4,400 7,780 15,900
30
374 768 1,150 2,220 3,530 6,250 12,700
40
320 657 985 1,900 3,020 5,350 10,900
50
284 583 873 1,680 2,680 4,740 9,600
60
257 528 791 1,520 2,430 4,290 8,760
70
237 486 728 1,400 2,230 3,950 8,050
80
220 452 677 1,300 2,080 3,670 7,490
90
207 424 635 1,220 1,950 3,450 7,030
100
195 400 600 1,160 1,840 3,260 6,640
125
173 355 532 1,020 1,630 2,890 5,890
150
157 322 482 928 1,480 2,610 5,330
175
144 296 443 854 1,360 2,410 4,910
200
134 275 412 794 1,270 2,240 4,560
**Fuel: Natural Gas
**Inlet Pressure: Less than 2.0 psi
**P
essure Drop: 0.50" w.c.
**Specific Gravity: 0.60