QR-25 Series
Quincy Compressor
52201-105, May 2003
15
3501 Wismann Lane, Quincy IL - 62305-3116
If the intake is piped to outside atmosphere, a hooded filter should be
installed to prevent water or snow from being ingested into the compressor.
All inlet piping should be at least the same size (or larger) in diameter as the
inlet connection to the compressor. For every 10 feet of inlet piping or every 90°
bend, increase the inlet piping diameter by one pipe size. The inlet piping must
be thoroughly clean inside. Remove all weld slag, rust or dirt. Galvanized pipe
with threaded or flanged fittings is preferred.
Never locate the compressor air inlet system where toxic, volatile
or corrosive vapors, air temperatures exceeding 100°F, water, or
extremely dirty air could be ingested. These types of atmospheres
could adversely affect the performance of the compressor system.
Compressed Air Discharge System
The discharge piping should be of the same diameter as the compressor
discharge connection, or sized so that the pressure drop at any point in the
system does not exceed 10% of the air receiver pressure. Install auxiliary air
receivers near heavy loads or at the far end of a long system. This will insure
sufficient pressure if the use is intermittent, or sudden large demands are
placed on the system.
Discharge piping should slope to a drop leg (refer to
Fig. 3-2, Typical Drop
Leg & Component Location
) or moisture trap to provide a collection point
where moisture can be easily removed. All service line outlets should be
installed above the moisture traps to prevent moisture from entering the tool
or device using the air. Manual shutoff valves, protected by pressure relief
valves, should be installed at all service line outlets to eliminate leakage while
the tools are not in use.
As with any piping, all parts of the discharge piping should fit so as not to
create any stress between the piping and components.
Pnuematic Circuit Breakers or Velocity Fuses
The Occupational Safety and Health Act (OSHA), Section 1926.303, Paragraph
7, published in the Code of Federal Regulations 29 CFR 1920.1, revised July 1,
1982 states that all hoses exceeding 1/2" inside diameter shall have a safety
device at the source of supply or branch line to reduce pressure in case of a hose
failure”
These pnuematic safety devices are designed to prevent hoses from whip-
ping and/or the loss of hazardous or toxic gasses, all of which could result in a
serious or fatal accident.
Never join pipes or fittings with lead-tin soldering. Welded or
threaded steel pipes and cast iron fittings, designed for the pres-
sures and temperatures, are recommended.
CAUTION !
WARNING !
Summary of Contents for QR-25 Series
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