Flow Coefficient Tables

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Flow Coefficient Tables 2017-04-17T18:45:00+00:00

Flow Coefficient, Cv vs ESEOD*

ESEOD
(Inches)
Cv Tubing Size – Ref.
(Inches O.D.)
.062 .07 1/8
.125 .30 3/16
.172 .58 1/4
.297 1.7 3/8
.391 3.0 1/2
.484 4.6 5/8
.609 7.1 3/4
ESEOD
(Inches)
Cv Pipe Size – Ref
(Inches I.D. Nom.)
.125 .30 1/8
.250 1.2 1/4
.375 2.7 3/8
.500 4.8 1/2
.625 7.3 5/8
.750 10.8 3/4
1.00 19 1
1.25 30 1-1/4
1.50 43 1-1/2
2.00 76 2
2.50 120 2-1/2
  • FLOW COEFICIENT, Cv, BY DEFINITION, IS THE VOLUME OF WATER IN GALLONS PER MINUTE AT 60 DEG F THAT WILL FLOW THROUGH A GIVEN ELEMENT WITH A PRESSURE DROP OF 1 PSI.
  • ESEOD: EQUIVALENT SQUARE EDGED ORIFICE DIAMETER.