Louisville Tin and Stove VFM204 ユーザーズマニュアル

TABLE 1 – first stage pipe sizing

10 PSIG Inlet with a 1 PSIG Pressure Drop
Maximum capacity of pipe or tubing, in thousands of BTU/hr. of L.P. Gas

Size of Pipe

LENGTH OF PIPE OR TUBING, FEET*

Or Copper
Tubing, Inches

1 0

2 0

3 0

4 0

5 0

6 0

7 0

8 0

9 0

1 0 0

3/8

558

3 8 3

3 0 9

2 6 5

2 3 5

2 13

1 96

1 8 2

1 7 1

1 61

Copper

1387

8 7 0

70 0

59 9

5 3 1

4 81

4 4 3

4 1 2

3 86

3 6 5

Tubing

5/8

2360

1622

1303

1115

9 8 8

8 96

8 2 4

7 6 7

71 9

6 7 9

(O.D.)

3993

2475

2205

1887

1672

1515

1394

1297

1217

1149

3339

2295

1843

1577

1398

1267

1165

1084

1017

9 6 1

Pipe

6982

4799

3854

3298

2923

2649

2437

2267

2127

2009

Size

13153

9040

7259

6213

5507

4989

4590

4270

4007

3785

1-1/4

27004

18560

14904

12756

11306

10244

9424

8767

8226

7770

1-1/2

40461

27809

22331

19113

16939

15348

14120

13136

12325

11642

77924

53556

43008

36809

32623

29559

27194

25299

23737

22422

125

1 5 0

1 7 5

2 0 0

2 2 5

2 50

2 75

3 0 0

3 5 0

4 00

3/8

142

1 3 0

1 1 8

1 1 1

1 0 4

9 0

8 9

8 2

7 6

Copper

323

2 9 3

2 6 9

2 5 1

235

222

211

201

185

172

Tubing

5/8

601

5 4 6

5 0 2

4 6 7

438

414

393

375

345

321

(O.D.)

1018

9 2 3

84 3

79 0

7 4 0

7 00

6 6 4

6 3 4

5 84

5 4 3

852

7 7 2

7 1 0

6 6 0

6 1 9

5 85

5 56

5 3 0

4 8 8

4 54

Pipe

1780

1613

1484

1381

1296

1224

1162

1109

1020

9 4 9

Size

3354

3039

2796

2601

2441

2305

2190

2089

1922

1788

1-1/4

6887

6240

5741

5340

5011

4733

4495

4289

3945

3670

1-1/2

10318

9349

8601

8002

7508

7092

6735

6426

5911

5499

19871

18005

16564

15410

14459

13658

12971

12375

11385

10591

*Total length of piping from outlet of first stage regulator to inlet of second stage regulator (or to inlet of second stage regulator furthest
away).
Notes:

1) To allow 2 PSIG pressure drop, multiply total gas demand by .707, and use capacities from table.
2 )

For different first stage pressures, multiply total gas demand by the following factors, and use capacities from table.
First State Pressure PSIG Multiply by
2 0

.844

2 1

.912

Data Calculated per NFPA #54 & 58.

TABLE 4 – Second, Single, or Integral Twin Stage Pipe Sizing

11 Inches Water Column Inlet with a ½ Inch Water Column Drop
Maximum capacity of pipe or tubing in thousands of BTU/hr of LP-Gas

Size of Pipe

LENGTH OF PIPE OR TUBING, FEET*

Or Copper
Tubing, Inches

1 0

2 0

3 0

4 0

5 0

6 0

7 0

8 0

9 0

10 0

3/8

4 9

3 4

2 7

2 3

2 0

1 9

—

Copper

1/2

110

7 6

6 1

5 2

4 6

4 2

3 8

3 6

3 3

3 2

Tubing

5/8

206

1 4 1

11 4

9 7

8 6

7 8

7 1

6 7

6 2

5 9

(O.D.)

3/4

348

23 9

1 92

1 6 4

1 4 6

1 32

1 2 0

1 1 3

1 05

1 0 0

7/8

536

3 6 8

29 6

25 3

2 2 4

2 03

1 8 5

1 7 4

1 61

1 5 4

1/2

291

2 0 0

16 1

13 7

1 2 2

1 10

1 0 2

9 4

8 7

8 4

Pipe

3/4

608

4 1 8

3 3 6

28 7

255

231

212

198

185

175

Size

1146

7 8 8

6 3 2

5 4 1

4 8 0

4 3 5

4 0 0

3 72

3 4 9

3 3 0

1-1/4

2353

1617

1299

1111

9 8 5

8 92

8 2 1

76 4

7 1 7

6 7 7

1-1/2

3525

2423

1946

1665

1476

1337

1230

1144

1074

1014

6789

4666

3747

3207

2842

2575

2369

2204

2068

1954

125

1 5 0

17 5

20 0

2 2 5

2 50

2 7 5

3 0 0

3 50

4 0 0

3/8

—

Copper

1/2

—

Tubing

5/8

—

(O.D.)

3/4

—

7/8

—

1/2

7 4

6 7

6 2

5 8

5 4

5 1

4 8

4 6

4 3

4 0

Pipe

3/4

155

1 4 1

1 2 9

12 0

113

107

101

9 7

8 9

8 3

Size

292

2 6 5

24 4

22 7

213

201

191

182

167

156

1-1/4

600

5 4 4

5 0 0

4 6 5

437

412

392

374

344

320

1-1/2

899

8 1 5

7 4 9

6 9 7

654

618

587

560

515

479

1731

1569

1443

1343

1260

1190

1130

1078

9 92

9 2 3

*Total length of piping from outlet of regulator to appliance furthest away.

Data Calculated per NFPA #54 & 58.

Page 8

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