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MAXIMUM LENGTHS OF SUCTION LINES FOR TWO-PIPE SYSTEM DANFOSS BFP11 R3
Two-pipe siphon feed system
H
Two-pipe lift system
H
NOZZLE
PUMP
gph
spry
0.40
60°S
0.50
60°S
0.55
60°S
0.60
60°S
0.65
60°S
0.75
60°S
0.85
60°S
NOZZLE : DANFOSS H÷S 80°÷60°; DELAVAN W 60°; STEINEN S 60°
DANFOSS BFP 11 R3
6
4
1
2
The pump pressure is set at a value of 12 bar during the testing of burners. Before starting the burner, bleed the air
in the pump through the gauge port. Fill the piping with light-oil to facilitate the pump priming.
Start the burner and check the pump feeding pressure. In case the pump priming does not take place during the
y
ADJUSTMENT DATA
OUTPUT
FIRING HEAD SETTING AIR DAMPER ADJUSTMENT
bar
kg/h
12
1,6
12
2
12
2,3
12
2,4
12
2,7
12
3,1
12
3,5
PRIMING AND ADJUSTMENT OF OIL PUMP
1 - INLET
2 - RETURN
3 - BLEED AND PRESSURE GAUGE PORT
4 - VACUUM GAUGE PORT
5 - PRESSURE ADJUSTMENT
6 - TO NOZZLE
3
7 - CARTRIDGE FILTER
VERIFY:
5
- That piping system is perfectly sealed.
- That the use of hoses is avoided whenever is possible
(use copper pipes preferably).
- That depression is not greater than 0,45 bar, to avoid pump's cavitation.
- That check valve is suitably designed for the duty.
420010510000 Max 1-15
H
H
(m)
(m)
0,5
1
1,5
2
2,5
3
3,5
H
H
(m)
(m)
0,5
1
1,5
2
2,5
3
3,5
Pos.
0
0,3
0,5
1
1,5
2
2,5
pag.7
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Length pipe (m)
ø 8 mm
ø 10 mm
30
65
35
70
40
75
45
80
50
85
55
90
60
95
Length pipe (m)
ø 8 mm
ø 10 mm
23
55
21
50
19
45
17
40
14
34
9
28
4
22
Pos.
1,8
2,3
3
3,5
4,5
5,3
6,5
Max 1-30
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