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Pipe and Tubing Size Tables

Pipe Sizing Between First and Second Stage Regulator: Nominal Pipe Size, Schedule 80.

Pipe

Length Ft.

½ In .

0.546

¾ In.

0.742

1 In.

0.957

1 ¼ In.

1.278

1 ½ In.

1.50

2 In.

1.939

3 In.

2.90

3 ½ In.

3.364

4 In.

3.826

30

1309

2927

5706

12185

18548

36368

104539

154295

216246

40

1121

2505

4884

10429

15875

31127

89472

132057

185079

50

993

2221

4328

9243

14069

27587

79297

117039

164032

60

900

2012

3922

8375

12748

24996

71849

106046

148625

70

828

1851

3608

7705

11728

22996

66100

97561

136733

80

770

1722

3357

7168

10911

21393

61494

90762

127204

90

723

1616

3149

6725

10237

20073

57697

85159

119351

100

683

1526

2975

6353

9670

18960

54501

80440

112738

150

548

1226

2389

5105

7765

15236

43766

64596

90533

200

469

1049

2045

4366

6646

13031

37458

55286

77484

250

416

930

1812

3870

5890

11549

33198

48999

68673

300

377

842

1642

3506

5337

10465

30080

44397

62223

350

347

775

1511

3226

4910

9627

27673

40844

57244

400

322

721

1405

3001

4568

8956

25745

37998

53255

450

303

676

1318

2816

4286

8403

24155

35652

49967

500

286

639

1245

2660

4048

7938

22817

33677

47199

600

259

579

1128

2410

3668

7192

20674

30514

42765

700

238

533

1038

2217

3375

6617

19020

28072

39344

800

222

495

966

2062

3139

6156

17694

26116

36602

900

208

465

906

1935

2946

5776

16602

21504

34342

1000

196

439

856

1828

2782

5456

15682

23146

32439

1500

158

353

687

1468

2234

4381

12593

18587

26050

2000

135

302

588

1256

1912

3750

10778

15908

22295

Notes:
  1. Maximum undiluted propane capacities listed are based on a gauge pressure of 10 psi first stage setting and 1 psi pressure drop. Capacities in 1000 Btu/hr.
  2. To convert capacities at a gauge pressure of 5 psi with 10 percent (0.5-psi) pressure drop, multiply values by 0.606. To convert to capacities at a gauge pressure of 15 psi with 10 percent (1.5 psi) pressure drop, multiply values by 1.380. Reference NFPA, Pamphlet 58, table 11-2

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Pipe Sizing Between Second Stage Regulator and Appliance

Nominal Pipe Size, Schedule 80

Pipe

Length Ft.

½ In .

0.546

¾ In.

0.742

1 In.

0.957

1 ¼ In.

1.278

1 ½ In.

1.50

2 In.

1.939

3 In.

2.90

3 ½ In.

3.364

4 In.

3.826

10

207

462

901

1924

2928

5741

16503

24357

34137

20

142

318

619

1322

2012

3946

11342

16740

23462

30

114

255

497

1062

1616

3169

9108

13553

18841

40

98

218

426

909

1383

2712

7795

11506

16125

50

87

193

377

805

1226

2404

6909

10197

14292

60

78

175

342

730

1111

2178

6260

9239

12949

80

67

150

292

625

951

1864

5358

7908

11083

100

59

133

259

553

842

1652

4748

7009

9823

125

53

118

230

491

747

1464

4208

6212

8706

150

48

107

208

444

677

1327

3813

5628

7888

200

41

91

178

380

579

1135

3264

4817

6751

250

36

81

158

337

513

1006

2892

4269

5983

300

33

73

143

305

465

912

2621

3868

5421

350

30

68

132

281

428

839

2411

3559

4987

400

28

63

122

261

398

780

2243

3311

4640

Note: Maximum undiluted propane capacities listed are based on a 11 in. water column setting and 0.5 in. water column pressure drop. Capacities in 1000 Btu/hr. Reference NFPA Pamphlet 58, table 11-2.

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Pipe Sizing Between First Stage
(High Pressure Regulator)
and
Second Stage (Low Pressure Regulator)
Schedule 40 Pipe Size (1 psi drop)

Pipe

Length Ft.

½ In .

0.622

¾ In.

0.824

1 In.

1.049

1 ¼ In.

1.380

1 ½ In.

1.610

2 In.

2.067

3 In.

3.068

3 ½ In.

3.548

4 In.

4.026

30

1843

3854

77259

14904

22231

43008

121180

177425

247168

40

1577

3298

6213

12756

19113

36809

103714

151853

211544

50

1398

2923

5507

11306

16939

32623

91920

134585

187487

60

1267

2649

4983

10244

15348

29559

83286

121943

169877

70

1165

2337

4590

9424

14120

27194

76622

112186

156285

80

1084

2267

4270

8767

13136

25299

71282

104368

145393

90

1017

2127

4007

8226

12325

23737

66882

97925

136417

100

961

2009

3785

7770

11642

22422

63176

92499

128859

150

772

1613

3039

6240

9349

18005

50733

74280

103478

200

660

1381

2601

5340

8002

15410

43421

63574

88564

250

585

1224

2305

4733

7092

13658

38483

56345

78493

300

530

1109

2089

4289

6426

12375

34868

51052

71120

350

488

1020

1922

3945

5911

11385

32078

46967

65430

400

454

949

1788

3670

5499

10591

29843

43694

60870

450

426

890

1677

3444

5160

9938

28000

40997

57112

500

402

841

1584

3253

4874

9387

25449

38725

53948

600

364

762

1436

2948

4416

8505

23965

35088

48880

700

335

701

1321

2712

4063

7825

22047

32280

44969

800

312

652

1229

2523

3780

7279

20511

30031

41835

900

293

612

1153

2367

3546

6830

19245

28177

39253

1000

276

578

1089

2236

3350

6452

18178

26616

37078

1500

222

464

875

1795

2690

5181

14598

21373

29775

2000

190

397

748

1537

2302

4434

12494

18293

25483

Note: Maximum undiluted propane capacities listed are based on a 10 psi first stage setting and 1 psi pressure drop. Capacities in 1000 Btu/hr. Reference NFPA Pamphlet 58, table 11-3.

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Revised January, 1999

 
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