GLOBAL WATER - PARSHALL, PALMER BOWLUS, AND "H" FLUMES
Primary Devices for Open Channel Flow Measurement
- The Palmer-Bowlus constricts the flow vertically and horizontally and can be molded to be inserted into an existing half-round pipe.
- The Parshall flumes constrict primarily horizontally, and are design for rectangular or trapezoidal channels.
- "H" flumes attach to the ends of pipes where the water is free-falling.