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Valve Sizing Calculations download

Posted by Antony Thomas at Friday, October 23, 2009

Valve Sizing Calculations



Improper valve sizing can be both expensive and inconvenient. A valve that is too small will not pass the required flow, and the process will be starved. An oversized valve will be more expensive, and it may lead to instability and other problems. The days of selecting a valve based upon the size of the pipeline are gone. Selecting the correct valve size for a given application requires a knowledge of process conditions that the valve will actually see in service. The technique for using this information to size the valve is based upon a combination of theory and experimentation.

• Sizing For Liquid Service

• Viscosity Corrections

• Finding Valve Size

• Nomograph Instructions

• Nomograph Equations

• Nomograph Procedure

• Predicting Flow Rate

• Predicting Pressure Drop

• Flashing and Cavitation

• Choked Flow

• Liquid Sizing Summary

• Liquid Sizing Nomenclature

• Sizing for Gas or Steam Service

• Universal Gas Sizing Equation

• General Adaptation for Steam and Vapors

• Special Equation Form for Steam Below 1000 psig

• Gas and Steam Sizing Summary

• Gas and Steam Sizing Nomenclature

• Sizing For Liquid Service

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SEE ALSO:
Valve Sizing Calculations download
NPSH Calculator For Process Engineer
PIPE SELECTION AND FRICTION LOSS CALCULATION

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