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High Pressure Gas Pipe Sizes
NOTE: Sizing calculations based on National Fuel Gas
Code.
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]
Equivalent Length
25 feet [7.6
m]
Gas Appli-
Based on 1 PSI Pressure Drop for Length Given
ances Total
BTU/hr.
Sizes shown in Gas Pipe Nominal Size (NPT)
100,000
1/2
120,000
1/2
140,000
1/2
160,000
1/2
180,000
1/2
200,000
1/2
300,000
1/2
400,000
1/2
500,000
1/2
600,000
1/2
700,000
1/2
800,000
1/2
900,000
1/2
1,000,000
3/4
1,100,000
3/4
1,200,000
3/4
1,300,000
3/4
1,400,000
3/4
1,500,000
3/4
1,600,000
3/4
©
Copyright, Alliance Laundry Systems LLC -
DO NOT COPY or TRANSMIT
50 feet
75 feet
[15.2 m]
[22.9 m]
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
3/4
3/4
3/4
3/4
3/4
3/4
3/4
3/4
3/4
3/4
3/4
3/4
3/4
3/4
3/4
3/4
1
3/4
1
3/4
1
Table 5 continues...
45
IMPORTANT: A high pressure regulator is required at
each machine.
100 feet [30
m]
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
3/4
3/4
3/4
3/4
3/4
3/4
3/4
1
1
1
1
1
Gas Requirements
125 feet [38
150 feet [46
m]
m]
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
3/4
1/2
3/4
3/4
3/4
3/4
3/4
3/4
1
3/4
1
3/4
1
1
1
1
1
1
1
1
1-1/4
1
1-1/2
1
1-1/4
1
1-1/4
Part No. 70532501ENR7
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