Two-Pipe Systems - Sime FUEL 25 EV Manual De Uso, Instalación Y Mantenimiento

EN
4.8.2.1 Two-pipe system (standard)
The pump is configured for two-pipe operation.
4.8.2.2 Single-pipe system (optional)
If a single-pipe system is used, a single flexible pipe for the oil
is required.
For this type of connection, it is necessary to remove the by-pass
grub screw (10) (using a 4 mm Allen key) and fit the plug (11) (5
mm Allen key) along with its seal.
a
WARNING
Before starting the burner, verify that the return line is
free. Any obstruction can damage the pump's sealing
device.
a
WARNING
– Only certified supply lines must be used.
– A single flexible pipe is required for single-pipe sy-
stems.
m
CAUTION
There is an internal filter and a pressure regulator
integrated in the pump. The vacuum gauge must be
connected before starting up the burner.
4.8.3

Two-pipe systems

Burner lower than the tank
Y
H = x-y
H (m)
Ø6 mm
0,5
1
1,5
2
Fig. 20
2,5
3
3,5
-
a
WARNING
– X < 20m
– A = Bottom valve, which must be kept as low as pos-
sible to prevent cavitation. In any case, Y < 4m.
Burner higher than the tank
10
11
H
Fig. 21
H (m)
Ø6 mm
1
1,5
2
0,5
1
1,5
2
X
A
Lunghezza tubo (m)
Ø8 mm
19 60
21 66
23 72
25 79
27 85
29 91
31 98
- -
A
Lunghezza tubo (m)
Ø8 mm
13 41
11 34
9 28
7 22
5 15
- 9
- -
Fig. 22
Ø10 mm
100
100
100
100
100
100
100
-
Fig. 23
Ø10 mm
99
84
68
53
37
22
-
49