House Gas Pipes - Capacities vs. Dimensions
Carrying capacity of house gas pipes - in imperial and metric units.
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Gas carrying capacities of pipe lines size 1/2" to 8" are indicated in the diagrams below.
Gas Carrying Capacity Diagram - Cubic Feet per Hour (ft3/h)
Download and print House gas Pipe Capacity diagram
Gas Carrying Capacity Diagram - Cubic Meter per Hour (m3/h)
Download and print House gas Pipe Capacity diagram
Gas Carrying Capacity Table - Cubic Feet per Hour (ft3/h)
| Length of pipe (feet) | Gas Carrying Capacities in House Piping (cubic feet per hour) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Nominal Diameter of Pipes (inches) | ||||||||||
| 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 3 | 4 | 6 | 8 | |
| 15 | 76 | 172 | 345 | 750 | 1220 | 2480 | 6500 | 13880 | 38700 | 79000 |
| 30 | 52 | 120 | 241 | 535 | 850 | 1780 | 4700 | 9700 | 27370 | 55850 |
| 45 | 43 | 99 | 199 | 435 | 700 | 1475 | 3900 | 7900 | 23350 | 45600 |
| 60 | 38 | 86 | 173 | 380 | 610 | 1290 | 3450 | 6800 | 19330 | 39500 |
| 75 | . | 77 | 155 | 345 | 545 | 1120 | 3000 | 6000 | 17310 | 35300 |
| 90 | . | 70 | 141 | 310 | 490 | 1000 | 2700 | 5500 | 15800 | 32250 |
| 105 | . | 65 | 131 | 285 | 450 | 920 | 2450 | 5100 | 14620 | 29850 |
| 120 | . | . | 120 | 270 | 420 | 860 | 2300 | 4800 | 13680 | 27920 |
| 150 | . | . | 109 | 242 | 380 | 780 | 2090 | 4350 | 12240 | 25000 |
| 180 | . | . | 100 | 225 | 350 | 720 | 1950 | 4000 | 11160 | 22800 |
| 210 | . | . | . | 205 | 320 | 660 | 1780 | 3700 | 10330 | 21100 |
| 240 | . | . | . | 190 | 300 | 620 | 1680 | 3490 | 9600 | 19740 |
| 270 | . | . | . | 178 | 285 | 580 | 1580 | 3250 | 9000 | 18660 |
| 300 | . | . | . | 170 | 270 | 545 | 1490 | 3000 | 8500 | 17660 |
| 450 | . | . | . | 140 | 226 | 450 | 1230 | 2500 | 7000 | 14420 |
| 600 | . | . | . | 119 | 192 | 390 | 1030 | 2130 | 6000 | 12480 |
The table can be used for low pressure gas with specific gravity 0.6. The pressure drop is 0.3 inches of water for the whole length of the pipe.
- Sizing Low Pressure Gas Service Pipes - Required pipe size connecting different no. of apartments through the same service pipe
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