baltur COMIST 72 DSPGM Manuel D'installation, Utilisation Et Entretien page 18

DIAGRAM OF A DISMANTLED ( C.B. ) CHARLES BERGONZO NOZZLE (WITHOUT PIN)
E
Nozzle ID.:
N
Flow rate kg/h
G
Spray angle (30° - 45° - 60° - 80°)
Flow ratio (1/3 = B3 - 1/5 = B5)
L
I
S
H
Fuel outlet
For the nozzle to operate properly, its "return" section must never be completely closed. This is achived by regulating where the
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burner is started up for the first time. In practice, when the nozzle is operating at the maximum flow rate, the difference in pressure
between the "delivery" (pump pressure) and "return" (pressure at the return pressure regulator) pressure (running to and from the
nozzle) must be at least 2 ÷ 3 bar.
Example: Pump pressure
Return pressure
Return pressure
BALTUR PUMP MODEL BT.....
Pump pressure regulation
(20 ÷ 22 bar)
Pump pressure regulation
(20 ÷ 22 bar)
Air turbolence
chambre
20 bar
20 - 2 = 18 bar
20 - 3 = 17 bar
1/4" Vacuum-meter connection
Suction
Suction 1/4" Vacuum-meter connection
Pump plate
14 / 30
0006080115_200909
Viton O-ring (oil and teperature resistant)
Fuel inlet
Fuel return hole
Pump pressure 22 bar
Return pressure 22 - 3 = 19 bar
Return pressure 22 - 2 = 20 bar
Return
Pump plate
Delivery (nozzle)
1/4" Pressure gauge connection
Heating element seal
Return
Delivery (nozzle)
1/4" Pressure gauge connection
Heating element seal
Fuel return