GAS SUPPLY
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| Maximum Capacity of Metallic Pipe in Cubic Feet of Gas per Hour for Gas Pressures of 2 psi or Less and |
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6.2(a) |
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| a Pressure Drop of 0.3 Inch Water Column. (Based on a 0.60 Specific Gravity Gas) |
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Nominal | Actual |
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| Length of Pipe (Feet) |
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Iron Pipe | ID: |
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Size | (Inches) | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 | 125 | 150 | 175 | 200 |
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1/2 | .622 | 131 | 90 | 72 | 62 | 55 | 50 | 46 | 42 | 40 | 38 | 33 | 30 | 28 | 26 |
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3/4 | .824 | 273 | 188 | 151 | 129 | 114 | 104 | 95 | 89 | 83 | 79 | 70 | 63 | 58 | 54 |
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1 | 1.049 | 514 | 353 | 284 | 243 | 215 | 195 | 179 | 167 | 157 | 148 | 131 | 119 | 109 | 102 |
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1 1/4 | 1.380 | 1,060 | 726 | 583 | 499 | 442 | 400 | 368 | 343 | 322 | 304 | 269 | 244 | 224 | 209 |
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1 1/2 | 1.610 | 1,580 | 1,090 | 873 | 747 | 662 | 600 | 552 | 514 | 482 | 455 | 403 | 366 | 336 | 313 |
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2 | 2.067 | 3,050 | 2,090 | 1,680 | 1,440 | 1,280 | 1,160 | 1,060 | 989 | 928 | 877 | 777 | 704 | 648 | 602 |
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2 1/2 | 2.469 | 4,860 | 3,340 | 2,680 | 2,290 | 2,030 | 1,840 | 1,690 | 1,580 | 1,480 | 1,400 | 1,240 | 1,120 | 1,030 | 960 |
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3 | 3.068 | 8,580 | 5,900 | 4,740 | 4,050 | 3,590 | 3,260 | 3,000 | 2,790 | 2,610 | 2,470 | 2,190 | 1,980 | 1,820 | 1,700 |
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4 | 4.026 | 17,500 | 12,000 | 9,660 | 8,270 | 7,330 | 6,640 | 6,110 | 5,680 | 5,330 | 5,040 | 4,460 | 4,050 | 3,720 | 3,460 |
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© 2009 National Fire Protection Association, Inc. and International Approval Services - U.S., Inc. All Rights Reserved.
Test connections
All connections and joints must be thoroughly tested for leaks in accordance with local codes and all listed procedures in the latest edition of the National Fuel Gas Code ANSI Z223.1/NFPA 54, Natural Gas and Propane Installation Code, CSA B149.1, or Propane Storage and Handling Code, B149.2, or the Standard for Recreational Vehicles, ANSI A
119.2/NFPA 1192, and CSA Z240 RV Series, Recreational Vehicle Code, as applicable.
mDANGER
Do not use an open flame to check for gas leaks. Be sure there are no sparks or open flames in the area while you check for gas leaks. This will result in a fire or explosion which can cause serious bodily injury or death, and damage to property.
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