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Formulas and Calculations - www.boilersource.com
•
Flow vs Pressure Equations
Flow vs Pressure Equations
F1 = Low Flow Rate
F2 = High Flow Rate
P1 = Low Pressure
P2 = High Pressure
•
Natural Gas Pipe Sizing
(Under 1.5 psig)
Natural Gas Pipe Sizing
Under 1.5 psig
Q
CFH
D
Pipe I.D. inches (actual)
L
Eq. Length - feet
in. w.c. ΔP
•
Natural Gas Pipe Sizing
(1.5 psig and greater)
Natural Gas Pipe Sizing
1.5 psig and greater
Q
CFH
D
Pipe I.D. inches (actual)
L
Eq. Length - feet
P
1
Initial PSIG
psig. ΔP
in. w.c. ΔP