Siemens Standby Generators manual Fuel Pipe Sizing, Natural Gas, LP vapor LPV, Pipe Size

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Generator Sizing Guide

Table 4 – Fuel Pipe Sizing

Natural Gas

 

Pipe Size (in.)

 

 

 

 

 

 

kW

0.75"

1"

1.25"

1.5"

2"

2.5"

3"

7

55

200

820

 

 

 

 

10

20

85

370

800

 

 

 

 

 

 

 

 

 

 

 

13

10

50

245

545

 

 

 

16

 

40

190

425

 

 

 

 

 

 

 

 

 

 

 

20

 

20

115

265

950

 

 

25

 

10

75

180

660

 

 

 

 

 

 

 

 

 

 

35

 

 

35

95

370

915

 

45

 

 

15

60

260

650

 

 

 

 

 

 

 

 

 

60

 

 

 

25

145

390

1185

70

 

 

 

5

75

225

710

 

 

 

 

 

 

 

 

80

 

 

 

 

65

195

630

100

 

 

 

 

40

140

460

 

 

 

 

 

 

 

 

130

 

 

 

 

 

50

215

150

 

 

 

 

 

30

150

 

 

 

 

 

 

 

 

LP vapor (LPV)

kW

7

10

13

16

20

25

35

45

60

70

80

100

130

150

Pipe Size (in.)

 

 

 

 

 

 

0.75"

1"

1.25"

1.5"

2"

2.5"

3"

165

570

 

 

 

 

 

70

255

1000

 

 

 

 

45

170

690

 

 

 

 

30

130

540

 

 

 

 

15

80

340

745

 

 

 

 

50

235

520

 

 

 

 

20

125

290

1030

 

 

 

 

82

195

725

 

 

 

 

45

115

445

1095

 

 

 

20

60

260

660

 

 

 

15

50

230

590

 

 

 

 

30

165

430

1305

 

 

 

 

70

205

660

 

 

 

 

45

150

490

Note: – Table values are maximum pipe run in feet.

Pipe sizing is based on .5" H2O pressure drop.

Sizing includes a nominal number of elbows and tees.

Please verify adequate service and meter sizing.

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Standby Generators specifications

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