baltur GI MIST 1000 DSPGM Instruction Manual page 60

DISMANTLED ( C.B. ) CHARLES BERGONZO NOZZLE (WITHOUT PIN)
Nozzle rating data:
Flow rate kg/h
Spray angle (30° - 45° - 60° - 80°)
Output ratio (1/3 = B3 - 1/5 = B5)
Fuel outlet hole
NOTE: For proper nozzle operation, it is important that the "return" is never completely closed. This condition must be implemented
properly when igniting the burner for the first time. In practice when the nozzle is operating at the maximum desired output,
the difference between "delivery" to nozzle (pump pressure) and "return" from nozzle (pressure at the return pressure regulator)
pressure must be at least 2 ÷ 3 bar.
Example
PUMP CONNECTION DIAGRAM HP MODEL VBH 1000 ÷ 6000
Pressure regulator screw
Intake
Fuel outlet
Pump pressure 20 bar
Return pressure 20 - 2 = 18 bar
Return pressure 20 - 3 = 17 bar
Fuel
0006080764 _201312
Fuel inlet
Fuel return
Pump pressure 22 bar
Return pressure 22 - 3 = 19 bar
Return pressure 22 - 2 = 20 bar
Delivery
Cock
16 / 42
Viton seal ring
(oil and temperature resistant)
Fuel return
Pressure gauge