Quincy Compressor QSB 15 HP, Instruction Manual

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Section III - Installation
14
Quincy Compressor ® - QSB/T ™
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 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 are to 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 any
personnel. Always direct discharge from relief valves to a
safe area away from personnel.
Relief Valve
Pressure Vessels
Air receiver tanks should be in accordance with ASME
Boiler and Pressure Vessel Code Section VIII.
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.