Alliance Laundry Systems CA170L - High Pressure Gas Pipe Sizes

Gas Pipe Size Required for 1000 Btu Natural Gas (Standard Conditions) at Upstream Pressure— 7 ± 1.5 in-
ches [17.4 ± 4 mbar, 1.74 ± 0.37 kPa] Water Column Pressure
GasAp-
pliances
Total
Btu/hr.
Equivalent Length
25 feet
[7.63 m]
50 feet
[15.25 m]
75 feet
[22.88 m]
100 feet
[30.50 m]
125 feet
[38.13 m]
150 feet
[45.75 m]
Based on 0.3 in. Water Column Pressure Drop for Length Given
Sizes shown in inches [mm]
1,900,000 2 [50.80] 2.5 [63.50] 2.5 [63.50] 3 [76.20] 3 [76.20] 3 [76.20]
2,000,000 2 [50.80] 2.5 [63.50] 2.5 [63.50] 3 [76.20] 3 [76.20] 3 [76.20]
2,200,000 2 [50.80] 2.5 [63.50] 3 [76.20] 3 [76.20] 3 [76.20] 3 [76.20]
2,400,000 2.5 [63.50] 2.5 [63.50] 3 [76.20] 3 [76.20] 3 [76.20] 3.5 [88.90]
2,600,000 2.5 [63.50] 2.5 [63.50] 3 [76.20] 3 [76.20] 3.5 [88.90] 3.5 [88.90]
2,800,000 2.5 [63.50] 3 [76.20] 3 [76.20] 3 [76.20] 3.5 [88.90] 3.5 [88.90]
3,000,000 2.5 [63.50] 3 [76.20] 3 [76.20] 3.5 [88.90] 3.5 [88.90] 3.5 [88.90]
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.
Table 5
High Pressure Gas Pipe Sizes
NOTE: Sizing calculations based on National Fuel Gas
Code.
IMPORTANT: A high pressure regulator is required.
Gas Pipe Size Required for 1000 Btu Natural Gas (Standard Conditions) at Upstream Pressure — 2 ± 0.4 psi
[138 ± 27.6 mbar, 13.7 ± 2.74 kPa] Water Column Pressure
GasAp-
pliances
Total
Btu/hr.
Equivalent Length
25 feet
[7.63 m]
50 feet
[15.25 m]
75 feet
[22.88 m]
100 feet
[30.50 m]
125 feet
[38.13 m]
150 feet
[45.75 m]
Based on 1 psi Pressure Drop for Length Given
Sizes shown in inches [mm]
100,000 0.5 [12.70] 0.5 [12.70] 0.5 [12.70] 0.5 [12.70] 0.5 [12.70] 0.5 [12.70]
120,000 0.5 [12.70] 0.5 [12.70] 0.5 [12.70] 0.5 [12.70] 0.5 [12.70] 0.5 [12.70]
Table 6 continues...
Gas Requirements
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46 Part No. 70458101ENR10