I'm Wondering if 4" Sliding PCV Gate Valves could be Utilized to Control Flow Direction in an Orifice Style Flow Bench ??
Can they Take the Pressure on the Exhaust Side ?
I'm Considering Running "External Flow Piping" on Both Ends of the Flow Bench..One on the Intake/Vacuum Side and One on the Exhaust Pressure Side..The Piping would Run from the Vacuum/Pressure Source Up into the Lower Plenum Chamber..( Before the Orifice Plate.) I Could then Utilize 8" Deck Plates Next to the Pipe Outlet on Both Ends of the Bench to Control Inlet and Outlet Flow from the Base of the Bench....
This Eliminates Internal Sliding Doors/Plates that may be Prone to Wear and Internal Leakage..
What Sayeth OOH Flow Bench Wealth of Knowledge ??? ???