Heavy Duty Balanced Opposed Compressors - Ariel Corporation

FOR MODELS: JGZ AND JGU SECTION 4 LUBRICATION
Thermostatic control
valve (3) configuration
may vary from this
schematic, depending
on valve size. In mixing
mode, B connection
is lube oil from
main oil pump with tee
connection to lube oil
cooler inlet, C is from
lube oil cooler outlet
and A is to main oil filter.
Valve connections
A-B-C are marked on
the valve.
Cold Starting
1 2
A7
A9
A1
A3 A4 A8
Oil Connections (See Ariel Outline Drawing for Details)
A1 Packager Connection from Oil Pump
A2 Packager Connection to Oil Filter
A3 Oil Connection from Compressor Crankcase (Oil Sump)
A4 Lube Oil Compressor-Inlet-Connection to Gallery Tube. Oil
Flows to the Crankshaft Main Bearings and through Drilled
holes in the Crankshaft to Connecting Rod Bearings
A5 Pressure Regulating Valve return Connection to Oil Sump,
when applicable.
A6 Filter Vent return Connection to the Oil Sump, when applicable
on some models
A7 Oil tubing connections from Frame Gallery Tube to top and
bottom of the Crosshead Guides to lubricate Crossheads
A8 Compressor Crankcase Oil Drain (Oil Sump Drain)
A9 Pre-Lube/Recirculation/Heater Connections (4)
10
Optional
Heater Circuit
A5 A6
4 9 8
If a compressor is exposed to cold ambient temperatures, the oil system must be designed so
the unit may be safely started with adequate oil flow to the journal bearings. Temperature controlled
cooler by-pass valves, oil heaters, cooler louvers and even buildings may be needed to
ensure successful operation.
7/09 PAGE 4 - 11
7
A9
B
A
C
3
6
Typical Wet Sump Design
A2
8
F
5
Piping and
components
by Ariel
Piping and
components
by Packager
System Components
1. Y - Strainer
2. Compressor Driven Oil Pump (w/ Safety Relief Valve -
used as a pressure regulating valve, or for models with a
separate regulating valve (6), as a relief valve)
3. Thermostatic Control Valve, 170°F (77°C) nominal rating -
Required (available as an purchase separately from Ariel)
4. Pre-Lube Oil Pump - Required (shown with Oil Heating
Circuit, when applicable)
5. Oil Filter
6. Pressure Regulating Valve (with Overflow Return to Oil
Sump), when applicable.
7. Oil Cooler - Required
8. Check Valve
9. 3-Way Valve, when applicable for Heater Circuit
10. Heater (When Applicable)
FIGURE 4-3 STANDARD FRAME LUBE OIL SCHEMATIC - TYPICAL