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NOZZLE CHOICE
The choice depends on the capacity of the boiler chamber bearing in mind that Light Oil has a heating
value (P.C.I.) of 10200 kcal/kg. The scheme shows the range or consumption, in kG/H and kW, of light
Oil in relation to the nozzle size (in GPH) and to pump pressure (in bar). For burners with preheater the
effective range levels are approximately 10% lower than those shown in the scheme.
NOZZLE
GPH
0,40
0,50
0,60
0,65
0,75
0,85
1,00
1,25
1,50
1,75
2,00
2,25
2,50
Example: Chamber power 29 kW.
With a pump pressure of 12 bar the nearest level is 28,70 kW which corresponds to a nozzle of 0,60GPH.
In cases where the right nozzle is not available it is possible, within the limits shown in the paragraph
"PUMP PRESSURE ADJUSTMENT" to alter the pump pressure in order to obtain the desired capaci-
ty.
GB
INSTALLING NOZZLE.
Once the nozzle adapt to the boiler power has been chosen proceed with its mounting onto the burner
following the instructions given in the paragraph "MAINTENANCE" (Fig. A, B, C, C1).
18
7
8
9
1,24
1,32
1,40
14,71
15,66
16,60
1,45
1,57
1,65
16,62
18,62
19,57
1,81
1,93
2,01
21,46
22,89
23,83
2,00
2,12
2,25
23,72
25,14
26,68
2,35
2,50
2,65
27,87
29,65
31,43
2,75
2,92
3,10
32,62
34,63
36,76
3,10
3,30
3,50
36,76
39,13
41,51
3,85
4,12
4,40
45,66
48,86
52,18
4,60
4,95
5,30
54,55
58,70
62,85
5,40
5,69
6,18
64,04
67,48
73,29
6,20
6,63
7,07
73,53
78,63
83,85
6,95
7,46
7,96
82,42
88,47
94,41
7,75
8,30
8,82
91,92
98,44
104,61
PUMP PRESSURE bar
10
11
1,47
1,54
17,43
18,26
1,73
1,81
20,51
21,50
2,23
2,32
26,44
27,51
2,40
2,63
28,46
31,19
2,80
2,95
33,21
34,99
3,27
3,45
38,78
40,92
3,67
3,85
43,52
45,66
4,61
4,82
54,67
57,16
5,55
5,80
65,82
68,78
6,46
6,75
76,61
80,05
7,43
7,75
88,12
91,92
8,38
8,70
99,39
103,17
108,17
9,28
9,67
110,06
114,70
120,62
12
13
14
1,61
1,68
1,75
19,09
19,92
20,75
1,89
1,97
2,05
22,42
23,36
24,31
2,42
2,52
2,64
28,70
29,88
31,31
2,74
2,80
2,91
32,49
33,21
34,51
3,07
3,20
3,33
36,41
37,95
39,49
3,60
3,75
3,90
42,69
44,47
46,25
4,02
4,20
4,38
47,67
48,72
51,95
5,03
5,25
5,46
59,65
62,26
64,75
6,05
6,30
6,55
71,75
74,72
77,68
7,06
7,38
7,96
83,73
87,53
91,20
8,10
8,42
8,80
96,07
98,87
104,37
9,12
9,50
9,90
112,67
117,42
10,17
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