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D
A
D
Overflow head
h
ü
94 of 112
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Permissible tolerances:
▪ Tolerances in building construction to DIN 18202, Part 4, Group B
▪ Welded construction: B/F to DIN EN ISO 13920
▪ Tolerances for conical seat (detail Y): ISO 2768-mH
Loss diagram
2
h
[m]
ü
1
0,8
0,6
0,5
0,4
0,3
0,2
0,1
0,1
0,2
0,3
0,4 0,5 0,6
Loss diagram
Calculation formulas:
H = H
+ ∆ H
geo
v
∆ H
▪ Overflow head h
v
▪ Loss in the riser (pipe friction)
▪ Outlet loss v
Overflow head h
depends on Q and the discharge diameter D
ü
curve values only apply to unimpeded outlet in all directions; otherwise they are
approximate values only.
Minimum water level diagram
Covered intake chamber
t
[mm]
1
4000
3000
2500
2000
1600
1200
1000
800
2
600
1
500
400
0,1
0,2
0,3 0,4
Amacan P
0,8
1
2
3
Q [m
3
/s]
(see diagram)
ü
2
/2 g (v refers to D
A
Key
1 - Amacan P 500-270
2 - Amacan P 600-350
0,6 0,8
1
Q [m
3
/s]
D
= 400 mm
A
D
= 600 mm
A
D
= 800 mm
A
D
= 1000 mm
A
D
= 1200 mm
A
D
= 1400 mm
A
D
= 1600 mm
A
D
= 1800 mm
A
D
= 2000 mm
A
D
= 2200 mm
A
4
5 6
)
. The characteristic
A
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