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← Engineering Tools
🎚️
Orifice Plate Calculator
Calculate orifice plate bore size and differential pressure per ISO 5167.
Liquid
Gas
Pipe Diameter (D)
mm
Orifice Diameter (d)
mm
Differential Pressure (ΔP)
Pa
mbar
inH2O
Fluid Density (ρ)
kg/m³
Dynamic Viscosity (μ)
Pa·s