High Pressure Gas Pipe Sizes
NOTE: Sizing calculations based on National Fuel Gas
Code.
IMPORTANT: A high pressure regulator is required at
each machine.
Gas Pipe Size Required for 1000 BTU Natural Gas (Standard Conditions) at Upstream Pressure — 2.0 ± 0.4
PSI [138 ± 28 mbar, 13.7 ± 2.7 kPa]
Gas Appli-
ances Total
BTU/hr.
Equivalent Length
25 feet [7.6
m]
50 feet
[15.2 m]
75 feet
[22.9 m]
100 feet [30
m]
125 feet [38
m]
150 feet [46
m]
Based on 1 PSI Pressure Drop for Length Given
Sizes shown in Gas Pipe Nominal Size (NPT)
100,000 1/2 1/2 1/2 1/2 1/2 1/2
120,000 1/2 1/2 1/2 1/2 1/2 1/2
140,000 1/2 1/2 1/2 1/2 1/2 1/2
160,000 1/2 1/2 1/2 1/2 1/2 1/2
180,000 1/2 1/2 1/2 1/2 1/2 1/2
200,000 1/2 1/2 1/2 1/2 1/2 1/2
300,000 1/2 1/2 1/2 1/2 1/2 3/4
400,000 1/2 1/2 1/2 1/2 1/2 3/4
500,000 1/2 1/2 1/2 3/4 3/4 3/4
600,000 1/2 1/2 3/4 3/4 3/4 3/4
700,000 1/2 3/4 3/4 3/4 3/4 1
800,000 1/2 3/4 3/4 3/4 3/4 1
900,000 1/2 3/4 3/4 3/4 3/4 1
1,000,000 3/4 3/4 3/4 3/4 1 1
1,100,000 3/4 3/4 3/4 3/4 1 1
1,200,000 3/4 3/4 3/4 1 1 1
1,300,000 3/4 3/4 3/4 1 1 1-1/4
1,400,000 3/4 3/4 1 1 1 1-1/2
1,500,000 3/4 3/4 1 1 1 1-1/4
1,600,000 3/4 3/4 1 1 1 1-1/4
Table 16 continues...
Gas Requirements
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56 Part No. 70686701ENR4