Unigas G4 P Series Installation Manual page 10

Pump DELTA VM1LR2
Viscosity
Oil temperature
Inlet pressure
Return pressure
Suction height
Rotation speed
Pump DANFOSS BFP21L3
Viscosity
Oil temperature
Inlet pressure
Return pressure
Suction height
Rotation speed
Key
1 Pressure setting
2 Manometer
3 Vacuometer
4 Solenoid valve
5 Nozzle
7 Inlet
8 Return
AIR RATE SETTING
Fig. 15
VBS
Type G4 mod. G-.TN...N.x and
G-.TN...S (internal air setting)

Slacken the screw VBS.

The air rate is set moving the screw
VBS through the slot.

At the end of settings tight the screw
VBS.
10
2 - 50 mm²/s (cSt)
0 - 60 °C in the pump
2 bar max.
2 bar max.
0,5 bar max. to avoid air separation
from oil
3500 rpm max.
1.3 - 12 mm²/s (cSt)
70 °C in the pump
2 bar max
2 bar max
0,35 bar max. to avoid air separation
from oil
3600 rpm max.
Fig. 16
VBS
Type G4 mod. G-.TN.x.*.A.x (external air
setting)
Set the air rate rotating the screw VBS.
PART I: INSTALLATION MANUAL
Fig. 13
Fig. 14
Fig. 17
Type G6 - G10 - G18

Slacken the screw VBS and
rotate manually the air damper
as needed.

At the end of settings tight the
screw VBS.
VBS