PALMER-BOWLUS FLUME, P-40 = 1
(as manufactured by Warminster Fiberglass or Plasti-Fab)
•
sized by pipe diameter
•
flume relief is trapezoidal
•
designed to install directly into pipelines and manholes
•
head is referenced to bottom of the throat
not
to bottom of pipe.
•
for rated flows under free flow conditions, the head is measured at a distance of D/2
upstream from the beginning of the converging section.
•
position the transducer such that it is centered over the flow at a minimum height of
30 cm (12") above the maximum head.
Q
plan
D/2 point of measurement
transducer
side
0
head
D = pipe or sewer diameter
front
PL-399 6 – 39
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