Section III - Installation
Piping Connections
Never join pipes or fittings by soldering.
Lead-tin solders have low strength, a
low creep limit, and may, depending on
the alloy, start melting at 360°F. Silver
soldering and hard soldering are forms of
brazing and should not be confused with
lead-tin soldering. Never use plastic, PVC,
ABS pipe or rubber hose in a compressed
air system.
Piping Fit-up
Care must be taken to avoid assembling
the piping in a strain with the compressor.
Piping should line up without having
to be sprung or twisted into position.
Adequate expansion loops or bends
should be installed to prevent undue
stress at the compressor resulting from the
changes between hot and cold conditions.
Pipe supports should be mounted
independently of the compressor and
anchored, as necessary, to limit vibration
and prevent expansion strains. Piping
should never be of smaller size than the
connection on the compressor unit.
Relief Valves
Pressure relief valves are
sized to protect the system.
Never change the pressure
setting or tamper with
the valve. Only the relief
valve manufacturer or an
approved representative
is qualified to make such a
change.
Danger!
Relief valves are installed to protect
system integrity in accordance with
ANSI/ASME B19 safety standards.
Failure to provide properly sized relief
valves will result in death or serious
injury.
Relief valves must be placed ahead of any
potential blockage point. That includes,
but is not limited to, such components
as shutoff valves, heat exchangers and
discharge silencers. Ideally, the relief
valve should be threaded directly into the
pressure point it is sensing (not connected
with tubing or pipe) and pointed away
from personnel.
Caution!
ASME coded pressure vessels must
not be modified, welded, repaired,
reworked or subjected to operating
conditions outside the nameplate
ratings. Such actions will negate code
status, affect insurance status and
may cause death, serious injury and
property damage.
4
Quincy Compressor-QGV Series
Summary of Contents for QGV-100
Page 2: ......
Page 6: ......
Page 17: ...Section II Description This page intentionally left blank Quincy Compressor QGV Series 11 ...
Page 74: ...Appendix A Dimensional Drawings QGV 50 air cooled 68 Quincy Compressor QGV Series ...
Page 75: ...Appendix A Dimensional Drawings QGV 50 water cooled Quincy Compressor QGV Series 69 ...
Page 76: ...Appendix A Dimensional Drawings QGV 75 100 air cooled 70 Quincy Compressor QGV Series ...
Page 77: ...Appendix A Dimensional Drawings QGV 75 100 water cooled Quincy Compressor QGV Series 71 ...
Page 78: ...Appendix A Dimensional Drawings QGV 150 200 air cooled 72 Quincy Compressor QGV Series ...
Page 79: ...Appendix A Dimensional Drawings QGV 150 200 water cooled Quincy Compressor QGV Series 73 ...
Page 89: ......
