Piping Reducer And Enlarger Minor Loss Factor

Calculate typical pipe reducer and enlarger minor loss factors.

The minor loss factors can be calculated for either the small diameter, and the large diameter. The nozzle can be either tapered with a transition, or abrupt with no transition. The taper angle is equal to half the cone angle.

Note : The calculated values are typical. Manufacturers data should be used if it is available.

Minor loss factors are calculated for:

• Av (SI) flow coefficient - the flow in cubic meters per second fluid density 1 kilogram per cubic meter which gives a pressure drop of 1 Pa
• Cv-uk (UK) flow coefficient - the flow in UK gallons per minute of water at 60 degrees F which gives a pressure drop of 1 psi
• Cv-us (US) flow coefficient - the flow in US gallons per minute of water at 60 degrees F which gives a pressure drop of 1 psi
• Cv-met (Metric) flow coefficient - the flow in liters per minute of water at 16 degrees C which gives a pressure drop of 1 bar
• Kv (EU) flow coefficient - the flow in cubic meters per hour of water at 16 degrees C which gives a pressure drop of 1 bar
• Cv* the dimensionless US flow factor = Cv-us / din^2 (din is the inside diameter in inches)
• K factor - the ratio of pressure loss over the dynamic pressure
• Cd or discharge coefficient - the ratio of the actual flow rate of the fluid through the fitting over the frictionless flow rate.

Reference : Crane Technical Paper 410M Metric Version : Flow Of Fluids Through Valves, Fittings And Pipe

Change Module :

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Related Modules :

• Fluid Density And Volume Calculation Module
• Gas Compressibility Factor Calculation Module
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• Liquid Kinematic And Dynamic Viscosity Calculation Module
• More Fluid Flow Fittings Modules

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