RECTANGULAR & V-NOTCH WEIR INSTALLATIONS
Vcal
FLOW
H
Weir
Plate
Weir
Crest
crest
Rectangular w/end contractions
crest
crest
V-Notch
Cippoletti
RECTANGULAR WEIR WITH END CONNECTIONS
Size
H Dim.
Vcal
Full Scale (GPM)
Full Scale Head Rise
(in.) (in.) (in.) Min. Max.
Max
(in.)
12
*
19.96 280
700
7.96
18
*
24.71 420
2100
12.71
24
*
26.52 600
3500
14.52
36
*
29.27 850
7000
17.27
48
*
35.17 1200
14500
23.17
60
*
40.69 1500
25000
28.69
72
*
46.78 1800
40000
34.78
84
*
53.17 2000
60000
41.17
96
*
59.54 2400
85000
47.54
V-NOTCH WEIRS
Size
H Dim.
Vcal
Full Scale (GPM)
Full Scale Head Rise
(in.) (in.) (in.) Min. Max.
Max
(in.)
22.5
*
36.00
15
1261
24.00
30
*
48.00
20
4729
36.00
45
*
48.00
30
7241
36.00
60
*
48.00
42
10096
36.00
90
*
48.00
72
17491
36.00
2-8
