High-Velocity Gas Flow in Reduced Port Valves

[+] Author and Article Information
Earl A. Bake

Rockwell Manufacturing Co., Pittsburgh, Pa.

J. Eng. Ind 92(4), 749-754 (Nov 01, 1970) (6 pages) doi:10.1115/1.3427841 History: Received June 11, 1970; Online July 15, 2010


A semiempirical method has been developed to treat the flow capacity and pressure drop of reduced port, straight-through flow valves handling compressible fluids. Calculations can be based on familiar incompressible flow equations. Correction factors produce results which apply to all gas flow rates up to the critical flow rate of the valve. These corrections will prevent the serious errors which can result from using standard incompressible flow equations alone.

Copyright © 1970 by ASME
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