Heavy Duty Balanced Opposed Compressors - Ariel Corporation

Section 3 - Maintenance For Models: JGH:E:K:T
Adjustment of Balance Valves Fed by Primary/Secondary Divider Blocks
NOTE: Set secondary balance valves
before setting primary balance valves.
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5
If the system contains no secondary
balance valves downstream of a secondary
divider block, proceed to step 4.
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4
6
1. Select one secondary divider block
that feeds one or more secondary balance
valves nearest the compressor
cylinder/packing.
2
2. For the selected secondary divider
block and secondary balance valves,
perform steps 2 through 7 in "Adjustment
of Balance Valves Fed by a
Divider Block" above.
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3. Repeat steps 1 and 2 for any remaining
secondary divider blocks that feed
one or more secondary balance valves
nearest the compressor cylinder/packing.
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4. Select one primary divider block that
feeds one or more primary balance
valves located prior to a secondary
divider block or lube point.
5. For the selected primary divider block
and balance valves, perform steps 2
through 7 in "Adjustment of Balance
Valves Fed by a Divider Block" above.
1. Primary Balance
Valve
2. Primary Balance
Valve Pressure
Gauge
3. Adjustment Cap
4. Lock Nut
6. Repeat steps 4 and 5 for any remaining
primary divider block that feeds
FIGURE 3-10 Primary/Secondary Divider Block System
7.
one or more balance valves located prior to a secondary divider block or lube point.
After setting all balance valves in the force feed system, operate the system for 4 to 6 hours, then
repeat steps 3 through 7 in "Adjustment of Balance Valves Fed by a Divider Block" above for
each primary or secondary divider block.
Subsequent Compressor Start-Up
5. Primary Divider
Block Pressure
Gauge
6. Primary Divider
Block
7. Secondary
Divider Block
Pressure Gauge
8. Secondary
Divider Block
9. Secondary
Balance Valve
10. Secondary
Balance Valve
Pressure Gauge
1. Verify tightness of all fittings and fix any known leaks. Purge force feed lube system.
2. If the force feed lube system has been disassembled or parts replaced since the last startup,
purge the force feed lube system with a high-pressure hand purge pump. When purging the system,
use the same oil that is recommended for the cylinder application, to remove any trapped air
or gas in the system. DO NOT USE ANY OTHER FLUIDS FOR PURGING! Call the Ariel
Reponse Center for details about purchasing a hand purge pump.
3. Start the compressor and bring up to normal operating pressure.
4. Operate the unit for 2 to 3 hours to allow the operating pressures to stabilize. DO NOT adjust the
balancing valves immediately after startup. It is possible that some lube point injection pressures
will fluctuate after a short period of run time and the system pressures will stabilize as components
increase in temperature.
5. See the cylinder lube sheets for balance valve locations and proper spring type for each device.
6. Select one divider block that feeds one or more balance valves.
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