LP-Gas Serviceman’s Manual

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Line Sizing Chart for Liquid Propane (Based on Pressure Drop of 1 PSI) 46 Liquid Iron Pipe (Feet) Propane 1/4” 3/8” 1/2” 3/4” 1” 1-1/4” 1-1/2” 2” Flow Schedule Schedule Schedule Schedule Schedule Schedule Schedule Schedule GPH 40 80 40 80 40 80 40 80 40 80 40 80 40 80 40 80 10 729 416 15 324 185 20 182 104 825 521 40 46 26 205 129 745 504 60 20 11 92 58 331 224 80 11 6 51 32 187 127 735 537 100 7 4 33 21 119 81 470 343 120 23 15 83 56 326 238 140 15 9 61 41 240 175 813 618 160 13 8 47 32 184 134 623 473 180 37 25 145 106 491 373 200 30 20 118 86 399 303 240 21 14 81 59 277 211 280 15 10 60 44 204 155 300 13 9 52 38 177 135 785 623 350 38 28 130 99 578 459 400 30 22 99 75 433 344 980 794 500 19 14 64 49 283 225 627 508 600 44 33 197 156 435 352 700 32 24 144 114 320 259 800 25 19 110 87 245 198 965 795 900 19 14 87 69 194 157 764 630 1000 16 12 71 56 157 127 618 509 1500 31 25 70 57 275 227 2000 18 14 39 32 154 127 3000 8 6 17 14 69 57 4000 10 8 39 32 5000 25 21 10000 6 5 To Use Chart 1. Having determined the required flow at point of use, locate this flow in the left hand column. If this falls between two figures, use the larger of the two. 2. Determine total length of piping required from source to point of use. 3. Read across chart from left (required flow) to right to find the total length which is equal to or exceeds the distance from source to use. 4. From this point read up to find the correct size of pipe required.
Representative Equivalent Lengths of Pipe for Various Valves and Fittings Equivalent Length of Steel Pipe (Feet) Fitting Nominal Pipe Size (NPT) 3/4” 1” 1-1/4” 1-1/2” 2” 2-1/2” 3” Schedule Schedule Schedule Schedule Schedule Schedule Schedule 45º Screwed 1.2 40 0.9 80 1.3 40 1.2 80 1.7 40 1.5 80 40 2.0 1.8 80 2.6 40 2.4 80 3.0 40 2.8 80 3.8 40 3.7 80 Elbow 90º Screwed Elbow 1.8 1.6 2.3 2.1 3.1 2.9 3.7 3.4 4.6 4.4 5.3 5.1 6.9 6.5 1.4 1.3 1.7 1.6 2.4 2.3 2.8 2.6 3.6 3.3 4.2 4.0 5.4 5.0 4.6 4.0 5.6 5.3 7.9 7.3 9.3 8.6 12.0 11.0 15.0 14.0 17.0 16.0 14.0 10.0 21.0 16.0 24.0 19.0 39.0 27.0 42.0 34.5 24.0 20.0 46.0 39.0 11.0 8.0 13.0 10.0 10.5 8.5 20.0 16.0 32.0 26.5 7.5 6.0 19.0 16.0 –– –– –– –– –– –– 30.0 24.0 41.0 34.0 –– –– 46.0 39.0 –– –– –– –– –– –– 12.0 10.0 14.5 12.0 –– –– 19.0 16.0 Screwed Tee Through Run Screwed Tee Through Branch Screwed Globe Valve* Screwed Angle Valve* Flanged Globe Valve* Flanged Angle Valve* * RegO ® A7500 Series Valves 47
Page 1: LP-Gas Serviceman’s Manual
Page 4 and 5: Contents Information About LP-Gas*.
Page 6 and 7: Vapor Pressures of LP-Gases* Temper
Page 8 and 9: Determining Total Load In order to
Page 10 and 11: ASME Storage Containers Determining
Page 12 and 13: 10 Proper Purging of LP-Gas Contain
Page 14 and 15: 12 Proper Purging of LP-Gas Contain
Page 16 and 17: Location of DOT Cylinders From NFPA
Page 18 and 19: Pipe And Tubing Selection Use the f
Page 20 and 21: Pipe And Tubing Selection Example 1
Page 22 and 23: Pipe And Tubing Selection Example 3
Page 24 and 25: Table 2 - First Stage Plastic Tubin
Page 26 and 27: 24 Table 4-Maximum Capacity of CSST
Page 28 and 29: 26 Table 6 - Copper Tube Sizing or
Page 30 and 31: 28 LP-Gas Regulators picks up heat
Page 32 and 33: LP-Gas Regulators Pigtails If you a
Page 34 and 35: LP-Gas Regulators Selecting LP-Gas
Page 36 and 37: LP-Gas Regulators 3. Assume a minim
Page 38 and 39: Leak Testing the Installation A. Ma
Page 40 and 41: 38 Leak Testing the Installation C.
Page 42 and 43: 40 Proper Use of Excess Flow Valves
Page 44 and 45: Pressure Relief Valves Surface area
Page 46 and 47: Repair of the MultiBonnet ® 3 Hold
Page 50 and 51: Determining Age of RegO ® Products
Page 52 and 53: Conversion Units Multiply By To Obt
Page 56: Manual L-545 Copyright 1962 Revised

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