Keckley Pressure Drop Chart (Styles B, BDI, E-150, E-300, F-150, F-300, SB, SB-7, SSB and SSB-7)

PRESSURE DROP CHART

Threaded "Y" Pattern Strainers (Styles B, BDI, E-150, E-300, F-150, F-300, SB, SB-7, SSB and SSB-7)

This pressure drop chart is based on the flow of clean water through the Keckley “Y” strainers listed above with screen perforations ranging from 3/64” through 1/8” and is additionally for use with those units equipped with a 20 mesh screen as standard.

TO USE CHARTS:

Find your desired rate of flow (GPM) on the left hand side of the chart. Follow its corresponding horizontal line to the point where it intersects the diagonal line indicating the strainer pipe size. From this point of intersection, follow the vertical line down to the bottom of the chart to determine the approximate pressure drop.

CORRECTION FACTORS:

For finer mesh screens that are backed with a perforated sheet, multiply the pressure drops shown at right by the following:

40 mesh x 1.2

60 mesh x 1.4

80 mesh x 1.6

100 mesh x 1.7