Table 2b

Pounds Per Hour Flow Rate of Saturated Steam

Based On A 6000 Feet Per Minute Velocity Through Sch. 40 Pipe

Pipe

Size

Absolute Pressure Of Flowing Saturated Steam - PSIA

25

50

75

100

150

200

250

300

400

500

600

700

1/4

16

31

45

59

86

114

141

169

224

279

337

394

3/8

29

56

82

108

158

208

259

309

411

512

619

722

1/2

47

89

131

171

252

332

412

493

654

816

985

1149

3/4

82

156

229

301

442

582

724

865

1148

1432

1729

2017

1

132

253

371

487

717

943

1172

1401

1859

2319

2801

3268

1 1/4

229

439

643

843

1240

1632

2029

2424

3218

4014

4849

5657

1 1/2

312

597

875

1147

1688

2222

2762

3300

4381

5465

6601

7701

2

514

984

1442

1891

2783

3663

4552

5439

7221

9007

10879

12692

2 1/2

733

1405

2057

2698

3971

5227

6496

7761

10304

12853

15523

18111

3

1132

2169

3177

4166

6132

8071

10030

11985

15911

19846

23970

27965

3 1/2

1515

2901

4249

5572

8201

10795

13416

16030

21281

26545

32060

37404

4

1950

3735

5471

7175

10559

13898

17273

20639

27400

34177

41279

48158

5

3064

5868

8596

11273

16591

21838

27141

32428

43052

53701

64859

75667

6

4425

8474

12413

16279

23958

31535

39193

46828

62169

77547

93660

109270

8

7663

14676

21499

28194

41494

54616

67879

81103

107672

134305

162212

189246

10

12078

23132

33885

44437

65401

86083

106986

127829

169706

211683

255669

298278

12

17143

32832

48094

63071

92825

122180

151848

181431

240868

300447

362876

423353