Jim Allen's Website

Orifice Bore Calculators, CV Calculators, Process Simulators, PID Tutorials, and Blather Log (Blog)

Orifice Bore Calculator - Gas
Full Scale Flow		SCFH SCFM SCMH SCMM
Flowing Pressure		psig atm in H2O mm H2O cm H2O oz/in2 kg/cm2 in Hg mm Hg cm Hg mbar bar Pa kPa MPa
Pipe ID		in cm mm
Pressure Drop (d/p)		psig atm in H2O mm H2O cm H2O oz/in2 kg/cm2 in Hg mm Hg cm Hg mbar bar Pa kPa MPa
Pipe Expansion Factor
Orifice Expansion Factor
Specific Gravity
Viscosity		cP
Base Temperature		oF
Flowing Temperature		oF
Base Compressibility
Flowing Compressibility
Beta Ratio	*****
Orifice Bore	*****	in cm mm