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IEC 60534-2-2

Industrial-Process Control Valves Part 2: Flow Capacity Section Two - Sizing Equations for Compressible Fluid Flow under Installed Conditions

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Organization: IEC
Publication Date: 1 January 1980
Status: inactive
Page Count: 38
ICS Code (Pressure regulators): 23.060.40
ICS Code (Industrial process measurement and control): 25.040.40
scope:

This section of Part 2 covers equations suitable for use in sizing industrial-process control valves when the flowing media are compressible fluids. At very low ratios of pressure differential to absolute inlet pressure (∆plp1), compressible fluids behave similarly to incompressible fluids. Under such conditions the sizing equations presented in this section can be traced to the basic Bernoulli equation for Newtonian incompressible fluids. However, increasing values of ∆plp1 result in compressibility effects which require that the basic equations be modified by appropriate correction factors. The equations presented are for use with gas or vapour and are not intended for use with multiphase streams such as gas-liquid, vapour-liquid or gas-solid mixtures.

Document History

IEC 60534-2-2
January 1, 1980
Industrial-Process Control Valves Part 2: Flow Capacity Section Two - Sizing Equations for Compressible Fluid Flow under Installed Conditions
This section of Part 2 covers equations suitable for use in sizing industrial-process control valves when the flowing media are compressible fluids. At very low ratios of pressure differential to...

References

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