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Gas Pipe Size Required for 1000 BTU Natural Gas (Standard Conditions) at Upstream Pressure— 7.0 ± 1.5
inches water column pressure [17.4 ± 4.0 mbar, 1.74 ± 0.37 kPa]
Equivalent Length
25 feet [7.6
m]
Gas Appli-
Based on 0.3 inches Water Column Pressure Drop for Length Given
ances Total
BTU/hr.
Sizes shown in Gas Pipe Nominal Size (NPT)
1,700,000
2
1,800,000
2
1,900,000
2
2,000,000
2
2,200,000
2
2,400,000
2-1/2
2,600,000
2-1/2
2,800,000
2-1/2
3,000,000
2-1/2
For L.P. Gas, correct the total Btu/hr by multiplying it by 0.6. The answer is the equivalent Btu on the above chart.
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Published by permission of the copyright owner -
DO NOT COPY or TRANSMIT
50 feet
75 feet
[15.2 m]
[22.9 m]
2-1/2
2-1/2
2-1/2
2-1/2
2-1/2
2-1/2
2-1/2
2-1/2
2-1/2
3
2-1/2
3
2-1/2
3
3
3
3
3
Table 15
55
100 feet [30
125 feet [38
m]
m]
2-1/2
3
2-1/2
3
3
3
3
3
3
3
3
3
3
3-1/2
3
3-1/2
3-1/2
3-1/2
Gas Requirements
150 feet [46
m]
3
3
3
3
3
3-1/2
3-1/2
3-1/2
3-1/2
Part No. 70686701ENR4
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