I am in the design stage of my first orifice type flowbench. I've searched but not found the exact answer I'm looking for.
What is the best style of test pressure control?
1: A valve between the vacuums and the plenums.
2: An air bleed.
I was thinking that the valve might be harder on the vacuums keeping them under load.
But maybe with an air bleed the vacuums might surge if they are running wide open all the time.
Or maybe it doesn't matter.
I know speed control for the vacuums is probably the best but this is a very low buget build.
Thanks for your help.