Low Pressure Flow of Propane Gas
in DriscoPlex® Pipe
1. Average ID used in all calculations. It equals the nominal OD minus 2.12 times the minimum wall thickness.
2. For flow in SCF/hr at sea level divide flow by 2488. Heat value of Propane Gas is 2488 BTU/scf at sea level.
3. Calculations used low pressure equation from Chapter 12 in National Fuel Gas Code.
Q = Flow (cubic ft per hr), D = ID (in), Cr = 1.2462 for propane,� ΔH = pressure drop (in w.c.),
L = equivalent length (ft)
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