THERMOJET
®
G3500E SERIES
OIL PURIFIER SYSTEM
INSTALLATION AND OPERATING MANUAL
Doc #
77740123
Rev
14
Date
June 2020
Page
39
of
104
Adjusting the Nitrogen Supply
Prior to setting the nitrogen supply check the nitrogen supply needle valve and ensure it is the full closed
position.
Turn ON the nitrogen supply line at its source and adjust the pressure regulator to 15-30 PSIG (1 to 2 BAR).
Adjustments are made by turning the knob on top of the device. Turning the knob clock-wise increases the
pressure setting and turning in a counter-clock wise direction decreases the pressure setting. Nitrogen
pressure is monitored by observing the pressure gauge between the pressure regulator and the nitrogen
needle valve.
While the ThermoJet is running and with the nitrogen supply needle valve in the closed position the
compound pressure gauge will be reading a negative pressure (vacuum).
Slowly open the needle valve while observing the compound pressure gauge. As nitrogen flow begins to
enter the top of the jet mixer the pressure will begin to move to positive. Open the needle valve until the
vacuum becomes zero. This setting represents an atmospheric reference for the nitrogen supply entering
the jet mixer. The nitrogen consumption will be approximately 5.5 SCFM when this procedure is executed.
The nitrogen flow is now set and no further adjustment is necessary.
Use pressure regulator to adjust N2
pressure to 15-30 PSIG (1 to 2 BAR)
Gauge monitors nitrogen pressure.
Adjust the regulator to set pressure
of 15-30 PSIG (1 to 2 BAR)
Adjust needle valve until compound
pressure gauge reads ZERO
