An experimental program was undertaken to evaluate orifice flow coefficient variations with changes in plate concentricity. The tests were conducted on four Beta ratio orifice plates, ranging from 0.4 to 0.7, mounted in a special flange tap test fixture in a four-inch water line. The results are presented as the percent variation in flow coefficient, from the centered value, for a given eccentricity in an X, Y coordinate system in the plane of the orifice plate. The results indicate that the change in flow coefficient is a function of the magnitude and direction of the eccentricity and the Beta ratio. The coefficients were higher than the centered value independent of orifice center motion with an X, Y coordinate system. The relationship of these results to the concentricity specifications of existing codes and available literature is also presented.
Experimental Study of the Effects of Orifice Plate Eccentricity on Flow Coefficients
R. W. Miller,
R. W. Miller
Flow Development and Measurement Group, The Foxboro Co., Foxboro, Mass.
The Foxboro Company, Foxboro, Mass.
- Views Icon Views
- Share Icon Share
- Cite Icon Cite
- Search Site
Miller, R. W., and Kneisel, O. (March 1, 1969). "Experimental Study of the Effects of Orifice Plate Eccentricity on Flow Coefficients." ASME. J. Basic Eng. March 1969; 91(1): 121–131. https://doi.org/10.1115/1.3571013
Download citation file:
- Ris (Zotero)
- Reference Manager
Get Email Alerts
Numerical Investigations of Gas–Liquid Two-Phase Flow in a Pump Inducer
J. Fluids Eng (February 2020)
A Coupled Overset Mesh and Hybridizable Discontinuous Galerkin Algorithm for Pseudo-Compressible Flow
J. Fluids Eng (January 2020)