When designing and constructing a hydraulic tank there are a lot of things to consider. One of them is to ensure an air-sucking vortex, like that you see when water goes down a drain, can not develop at the pump intake line penetration. Doing the following will ensure that it doesn’t:
–Locate the intake penetration at least five times its inside diameter from the nearest reservoir wall, and no less than half its inside diameter, (but at least 100 mm or 4″), off the bottom.
–Ensure the intake penetration always remains submerged by at least twice its inside diameter.
–Size the intake line so that fluid velocity is no more than 1.2 m/sec (4 ft/sec), and preferably slower.… continue reading »