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Flow Calculations

Engineering Data

Mass Flow

Gas/Air

Liquid Flow

(Gas/Air) Flow Equation

Differential Pressure when Flow in SCFH is known

D=Inside pipe diameter

Enter pressure in PSIG

Enter temperature in Degrees Farenheit

Gs=Specific Gravity @ standard conditions

Sch. 40 Sch. 80

 

Enter nominal line size in inches

SCFH=Flow in Standard Cubic Feet per Hour

 

Your answer in inches of W.C. D/P.

 

Find flow in SCFH when Differential Pressure is known

D=Inside pipe diameter

Enter pressure in PSIG

Enter temperature in Degrees Farenheit

Gs=Specific Gravity @ standard conditions

Sch. 40 Sch. 80

 

Enter nominal line size in inches

DP=Differential pressure in inches of water column

 

Your answer in Standard Cubic Feet per Hour