PDF Perforated Sheet Metal Sizes Keckley
OPEN AREA of the screen. the result (OPEN AREA of the screen) by the INSIDE AREA of the pipe to give the ratio of net free area of the screen to the pipe. Example: (2" Style B screwed "Y" strainer with a 20 mesh 304 stainless steel screen) (total screen area in2) x .49 (20 mesh = 49% open area) (total open area of ...