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5.2.2
Maximum suction line length in the case of a lower lying line
1. Install an anti-siphon valve to keep liquid fuel from escaping (siphoning)
in the case of an untight suction line and a higher level in the tank.
Nozzle
Inner
throughput
pipe
< 2.5 kg/h
(3 l/h)
5 kg/h
(6 l/h)
7.5 kg/h
(9 l/h)
10 kg/h
(12 l/h)
15 kg/h
(18 l/h)
20 kg/h
(24 l/h)
Mounting
A
B
H
H
KAV
MAV
D
C
Ø
1.5
Ø 4 mm
32
Ø 4 mm
10
Ø 4 mm
10
Ø 6 mm
54
Ø 4 mm
8
Ø 6 mm
40
Ø 6 mm
27
Ø 6 mm
20
Ø 8 mm
64
A. Piston type anti-siphon
B. Diaphragm type anti-
C. H
D. H
Suction height H [m]
2.0
2.5
26
19
8
6
8
6
43
33
6
4
32
25
21
16
16
12
52
39
valve "KAV"
siphon valve "MAV"
= Safe height "KAV"
KAV
= Safe height "MAV"
MAV
3.0
3.5
13
7
4
2
4
2
22
12
3
1
17
9
11
6
8
4
26
14
FloCo-Top-2
EN
4.0
1
1
0
1
0
1
0
0
1
14
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