THERMOJET
®
G-3700E SERIES
OIL PURIFIER SYSTEM
INSTALLATION AND OPERATING MANUAL
Doc #
77740151
Rev
03
Date
June 2020
Page
20
of
111
Ensure that the oil return connection is above the oil level in the reservoir to prevent back flow
and flooding of the separation tank when the Thermo
Jet
is not operating. Return oil must be
introduced into the reservoir above the oil level to prevent siphoning when the Thermo
Jet
is not
operating.
To prevent the potential risk of static electricity ensure that free falling oil does not exceed 6
inches (150 mm). If the oil return level exceeds 6 inches (150 mm), insert a guide baffle to
smooth out flow to the oil surface in the reservoir.
Even if the Thermo
Jet
is to be installed temporarily, it should be hard-piped for safety reasons.
Hoses are acceptable if they are certified not to collapse under vacuum conditions and are rated
for 600 PSIG (42 bar) at 200
o
F (100
o
C).
Since all wetted parts of the Thermo
Jet
are constructed of type 300 stainless steel, it is
recommended (but not mandatory) that connecting hard pipe work is also stainless steel.
In accordance with good piping practice, the use of joints, bends, and unnecessary long pipe runs
should be minimized. Elevated sections of suction piping in horizontal runs also must be avoided
to prevent air pockets from existing.
Connect the suction line to the reservoir low point drain, or to existing purifier connections if the
reservoir is constructed in accordance with API 614.
When a flooded suction is provided to the ThermoJet Oil Purifier, recommended practice is to
install a manual shut-off valves (if one does not already exist) directly onto the reservoir
connection routed to the Thermo
Jet
inlet connection.
If the oil reservoir is located below the Thermo
Jet
oil inlet connection, a manual shut-off valve is
not required or desirable since it creates a line restriction unnecessarily.
The discharge line should be connected above the oil surface and at the opposite end of the
reservoir versus the suction connection to ensure optimum circulation of oil through the
Thermo
Jet
. An oil purifier return connection will exist if the reservoir is constructed in
accordance with API 614.
NOTE: Do not install any valves or other restrictive devices in the discharge line which could
cause back flow and flooding of the unit.
Choose a central convenient location, allowing enough room to connect oil supply and return
piping and electrical services. Ensure that unrestricted operator access is maintained at the front
of the unit when the cabinet door is open for system operation and ease of access to the
electrical control enclosure..
The ThermoJet Oil Purifier has maintenance access doors on the front of the cabinet. Ensure that
unrestricted access is provided for system troubleshooting and maintenance.
NOTICE:
Ensure that the supply connection to the ThermoJet Oil Purifier is not
adjacent to or near any oil return connection in the oil reservoir being
services. This could result in oil frothing.
