Denali National Park Weather Forecast for Wednesday, April 19. The Denali National Park, AK forecast for Apr 19 is 47 degrees and Patchy rain possible . There is 69 percentage chance of rain and 12 mph winds from the South-Southeast.
Topics: Introduction Equations Discharge Coefficients Error Messages References. Introduction to Orifice Flow Meter Calculation. Orifice flow meters are used to determine a liquid or gas flow rate by measuring the differential pressure (P1 - P2) across the orifice plate. The two standard pressure tapping arrangements for small bore orifices are shown in the drawings; the location of the pressure taps affects the discharge coefficient somewhat.
RE: Calculating flow through 2 orifices. As kcj said, the second orifice raised the system pressure up to or above some controlling component pressure setting and flow decreased. If the motor does not have a case drain for the shaft seal, you run the risk of overpressuring the shaft seal by putting an orifice downstream of the motor.