Table - o, Fittings to equivalent straight pipe – Lochinvar 000 through 2 User Manual
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TABLE - M
Recommended Gas Pipe Size
Single Appliance Installations
Distance from Meter
Btu/hr
1,500,000
2"
2 1/2"
2 1/2"
2 1/2"
2 1/2"
3"
3"
3"
3"
3"
3 1/2"
3 1/2"
3 1/2"
4"
1,700,000
2,000,000
0 - 50 ft.
51 - 100 ft.
101 - 200 ft.
201 - 300 ft.
301 - 500 ft.
For each elbow or tee, add equivalent straight pipe to total length from TABLE - O.
TABLE - N
Multiple Appliance Installations Gas Pipe Size Chart
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4
Maximum Capacity of Pipe in Thousands of Btu’s per hour for gas pressures of 14 Inches Water Column (0.5 PSIG) or less and a
pressure drop of 0.5 Inch Water Column (Based on NAT GAS, 1025 Btu’s per Cubic Foot of Gas and 0.60 Specific Gravity).
TABLE - O
Fittings to Equivalent Straight Pipe
Diameter Pipe Fitting (inches)
3/4"
1"
1 1/4"
1 1/2"
2"
3"
4"
5"
Equivalent Length of Straight Pipe (feet)
2'
2'
3'
4'
5'
10'
14'
20'