I was kindly sent this by Sampathkumar Iyengar showing a filter screen in a hydraulic tank. I have never seen this done before. Looks a very good idea!
Many thanks Sampathkumar

Dear Bob,
These screens serve the purpose of filtration of oil from the dirty side to the clean side of the reservoir.
These screens can be periodically removed for cleaning and re inserted in the slots.
These screens have advantage of large area of wire mesh available to trap dirt and debris from the return line of systems
For the suppression of bubbles we weld a sheet with a 45 degree slope with perforations on the side leading to the clean chamber
I am enclosing an additional photos with remarks for clarity.

Trust the information assists


Best regards


Sampathkumar Iyengar