Open area & Flow rate

The open area is the digitized opening area of screen per unit area of a square of one foot in length for a quantitative calculation of the flow passing through the surface of the cylindrical screen, the flow rate on the screen engineering refers the flow rate which the screen can process by calculating a specific constant and total available flow quantity using the total space of outer surface of screen, the respective calculation method is as follow.

▶ Open area calculation

OAF = open area factor, W = Wire width, S = Slot

▶ Flow rate caculation

Q = Total service flow in GPM, d = Out dia inch, L = Lenght inch