5893
7
CHOICE OF NOZZLES - OF THE PUMP PRESSURE
OF THE COMBUSTION HEAD ADJUSTMENT
Advise pressure
- Light oil: 20 bar
- Heavy oil: 25 bar
Rated deliveries of the nozzles are indicated on the above list and refer to a light oil having viscosity from 3 to
5° E at 50° C pre-heated at 100° C.
The effective delivery may vary of ± 5% against the rated one.
In case of requirement of intermediate values, the pump pressure or the nozzles match could be changed.
The pump is set by the factory at 20 bar.
Combustion head adjustment
Turn the screw A till the set-point, detected from the di-
agram, is on line with the washer B.
In case of very heavy oil it is advised to use high
wear resistance nozzles (for instance Monarch
F 80 H0)
Nozzles delivery
Pump pressure
Combustion head adjustment
Maximum output
Nozzle
GPH (45° - 60°)
20 bar
kg/h
25 bar
kg/h
1,25 + 1,25
15,00
17,00
1,50 + 1,50
18,00
20,30
1,75 + 1,75
21,00
23,80
2,00 + 2,00
24,00
27,10
2,25 + 2,25
27,00
30,50
2,50 + 2,50
30,00
-
Set-point
Set-point 4
A
B
