420010355104 Max P15-25 / P15-25 AB
EN
Two-pipe siphon feed system
x
Two-pipe lift system
H
Two-pipe siphon feed system
x
Two-pipe lift system
H
Altitude (m)
0-500
501-800
801-1300
1301-1800
1801-2200
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).
MAXIMUM LENGTHS OF SUCTION LINES
H = x-y
y
H = x-y
y
Correction of altitude
Pump in suction (H +) or charging (H -)
Theoretical H (m)
0
0,5
1,0
1,5
2,0
FEEDING LINE WITH SUNTEC AS V 47 A
H
(m)
ø 8 mm
0,5
1
1,5
2
2,5
3
3,5
H
(m)
ø 8 mm
0,5
1
1,5
2
2,5
3
3,5
FEEDING LINE WITH DANFOSS BFP21 R3
H
(m)
ø 6 mm
0,5
19
1
21
1,5
23
2
25
2,5
27
3
29
3,5
31
H
(m)
ø 6 mm
0,5
15
1
13
1,5
11
2
2,5
3
3,5
8
Length pipe (m)
ø 10 mm
30
65
35
70
40
75
45
80
50
85
55
90
60
95
Length pipe (m)
ø 10 mm
23
55
21
50
19
45
17
40
14
34
9
28
4
22
Length pipe (m)
ø 8 mm
ø 10 mm
60
100
66
100
72
100
79
100
85
100
91
100
98
100
Length pipe (m)
ø 8 mm
ø 10 mm
47
100
41
99
34
84
9
28
68
7
22
53
5
15
37
-
9
22
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.