14
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EN
420010029304
Installation
- Oil feeding and suction line
H
H
(m)
ø 6 mm
ø 10 mm
0
,5
1
1,5
2
2,5
3
3,5
15
13
11
9
7
5
-
1
00
99
8
4
6
8
53
37
22
H
(m)
ø 6 mm
ø 10 mm
0
,5
1
1,5
2
2,5
3
3,5
19
21
23
25
27
29
31
ø 8 mm
4
7
4
1
3
4
28
22
15
9
ø 8 mm
60
66
72
79
85
91
98
1
00
1
00
1
00
1
00
1
00
1
00
1
00
y
H =
x
-y
x
Burner lower than tank
FEEDING LINE WITH DANFOSS BFP21
Burner higher than tank
Pipe length (m)
Pipe length (m)
N.B. = X < 20 m
Y must be kept as lower as possible in order to avoid cavitation. Anyway Y< 4 m.
Length pipe (m)
Length pipe (m)
FEEDING LINE WITH DANFOSS BFP11 R3
Correction of altitude
Pump in suction (H +) or charging (H -)
Altitude (m)
Theoretical H (m)
0-500
0
501-800
0,5
801-1300
1,0
1301-1800
1,5
1801-2200
2,0
e.g.: altitude 1100m Theoretical H = 1m actual H 2m, Corrected H for suction 2 + 1 = 3m Corrected H for charging 2 - 1 = 1m.
Choose the Ø of the piping from the table, based on the length expanded between the tank and pump. If corrected H for suction
exceeds 4m; make provisions for a transfer pump (max. pressure 2 bar).
!
The length of the tubes apply to
burners powered by 50 Hz mains
electricity; in case of 60 Hz power,
divide the relevant lengths by 1.5.
