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Briggs & Stratton 7000 WATT 206484GS User Manual

Page 13

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13

Themanometerportpermitstemporaryinstallationofa

manometertoensurethattheenginereceivesthecorrect

fuelpressuretooperateefficientlythroughoutitsoperating

range.

NOTE:Adigitalmanometer,P/N19495,isavailableatyour

localBriggs&Strattonservicecenter.
Whentheinitialtestrunsarecompleted,themanometer

isremovedandtheportisplugged.Atypicalfinalfuel

connectionassemblyisshownhere,where(A)isthefuel

supplyand(B)goestothehomegenerator.

Fuel Consumption
Estimatedfuelsupplyrequirementsathalfandfullloadfor

naturalgasandLPvaporfuelsareshownbelow.

Fuel Pipe Sizing
Thetablesbelowprovidethemaximumcapacityofpipein

cubicfeetofgasperhourforgaspressuresof0.5psior

lessandapressuredropof0.3in.watercolumn.Specific

gravityofgasisshown.
Listedvaluescompensateforanominalamountof

restrictionfrombends,fittings,etc.Ifanunusualnumberof

fittings,bends,orotherrestrictionsareused,pleasereferto

federalandlocalcodes.

B

A

Natural Gas

LP Vapor

1/Load

FullLoad

1/Load

FullLoad

80C

137C

33C

56C

80,000B

137,000B

8,500B

140,000B

C=Cubicfeetperhour

B=BTU’sperhour

NPT

10ft

15ft

20ft

30ft

40ft

50ft

60ft

70ft

80ft

90ft

100ft

1/”

168

146

115

93

79

70

63

59

55

51

48

3/4”

346

93

40

19

163

145

13

10

113

106

99

1”

653

549

446

360

307

74

50

30

11

197

187

Natural Gas Pipe Size - Gas Flow chart, in cubic feet per hour, specific gravity=0.65

NPT

10ft

15ft

20ft

30ft

40ft

50ft

60ft

70ft

80ft

90ft

100ft

1/”

110

96

76

61

5

46

4

38

36

33

3

3/4”

77

19

158

16

107

95

87

79

74

69

65

1”

48

360

93

36

0

180

164

151

139

19

13

Liquid Propane (LP) Gas Pipe Size - Gas Flow chart, in cubic feet per hour, specific gravity=1.50