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Volume Inside Pipelines of Different Diameters for Minimum Federal Isolation Valve Spacing
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Pipeline Outer Diameter (inches)Approximate Pipeline Inner Diameter Assuming 0.5" Pipe Wall Pipeline Diameter (feet) Pipeline Cross Section (π R2) (square feet) Maximum Pipeline Segment Length Between Valves in High Consequence Area (HCA) per 49 C.F.R. § 195.260 (miles)Maximum Pipeline Segment Length Between Valves in High Consequence Area (HCA) per 49 C.F.R. § 195.260 (feet)Volume Inside 15 Miles of Pipeline (cubic feet)Volume Inside 15 Miles of Pipeline (barrels)Volume Inside 15 Miles of Pipeline (gallons)Maximum Pipeline Segment Length Between Valves NOT in High Consequence Area (HCA) per 49 C.F.R. § 195.260 (miles)Maximum Pipeline Segment Length Between Valves NOT in High Consequence Area (HCA) per 49 C.F.R. § 195.260 (feet)Volume Inside 20 Miles of Pipeline (cubic feet)Volume Inside 20 Miles of Pipeline (barrels)Volume Inside 20 Miles of Pipeline (gallons)
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43 0.25 0.05 15 79,200 3,888 692 29,082 20 105,600 5,184 923 38,776
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65 0.42 0.14 15 79,200 10,799 1,923 80,784 20 105,600 14,399 2,565 107,712
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87 0.58 0.27 15 79,200 21,166 3,770 158,336 20 105,600 28,222 5,027 211,115
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109 0.75 0.44 15 79,200 34,989 6,232 261,740 20 105,600 46,653 8,309 348,986
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1211 0.92 0.66 15 79,200 52,268 9,309 390,994 20 105,600 69,691 12,412 521,325
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1615 1.25 1.23 15 79,200 97,193 17,311 727,054 20 105,600 129,591 23,081 969,406
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2019 1.58 1.97 15 79,200 155,941 27,774 1,166,518 20 105,600 207,921 37,032 1,555,358
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2423 1.92 2.89 15 79,200 228,512 40,700 1,709,385 20 105,600 304,682 54,266 2,279,181
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3029 2.42 4.59 15 79,200 363,286 64,704 2,717,567 20 105,600 484,381 86,272 3,623,423
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3635 2.92 6.68 15 79,200 529,162 94,248 3,958,407 20 105,600 705,549 125,664 5,277,876
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4241 3.42 9.17 15 79,200 726,140 129,331 5,431,903 20 105,600 968,186 172,441 7,242,538
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4847 3.92 12.05 15 79,200 954,219 169,954 7,138,058 20 105,600 1,272,293 226,605 9,517,410
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Pipeline Volume Calculator
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Input Values in Red Fields
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Custom Diameter (Inches)Approximate Pipeline Inner Diameter Assuming 0.5" Pipe Wall (Inches) Pipeline Diameter (feet) Pipeline Cross Section (π R2) (square feet) Custom Length (Miles)Custom Length (Feet)Volume Inside CustomLength of Pipeline (cubic feet)Volume Inside Custom Length of Pipeline (barrels)
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2423 1.92 2.89 10 52,800 152,341 27,133
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