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ENGLISH
BERGONZO NOZZLE WITHOUT PIN
For diesel operation, use nozzles model BERGONZO type B5 45°
without pin depending in the maximum regulated heat output.
The diagrams below represent the curves showing the values of
the fuel flow rate delivered by the nozzles depending on the return
pressure.
The curves were obtained by considering a diesel pump regulating
pressure of 20 - 25 - 30 bar.
The curves were obtained by considering a diesel pump regulating
pressure of 25 bar.
the graph shows the flow curve of the fuel dispensed from the nozzle
depending on the return pressure.
The return pressure value is to be measured on the pressure gauge
with scale 0-40 bar according to the diagram.
FLOW RATE REGULATOR CONNECTION DIAGRAM
6
5
4
1
2
3
1
Pressure gauge with scale 0-40 bar for measuring the nozzle return pressure.
2
Ball cock.
3
Servo motor rotation index.
4
Liquid fuel flow rate adjustment.
5
Fuel inlet from nozzle return.
6
Fuel outlet on pump return,_|r|_6: flow rate regulator closed, maximum flow rate supplied by nozzle._|r|_0: flow rate regulator fully open, minimum
flow rate supplied by nozzle.
450
400
350
300
250
(Y)
200
150
100
50
0
6
7
(X) Nozzle return pressure (bar)
(Y) Liquid fuel flow rate (kg/h)
1
2
3
20 / 44
0006160077_201802
Ugello 400 kg/h
8
9
10
11
12
13
14
15
16
17
18
(X)
4
19 20
6
5
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