QR-25 Series
Quincy Compressor
52201-107, December 2012
18
3501 Wismann Lane, Quincy IL - 62305-3116
air tank is dependent upon an internal tank pressure of 20 to 30 PSIG (no
more than 30 PSIG). Higher internal tank pressures are dangerous and could
cause serious injury!
Oil and moisture residue must be drained from the air receiver
daily or after each use. Accumulations of oil residue in the receiver
can be ignited by embers of carbon created by the heat of compres-
sion, causing an explosion, damage to property and injury to per-
sonnel.
Do not open a manual tank drain valve on any air tank containing
more than 30 PSIG of air pressure!
Never attempt to relieve an air tank by removing a pipe plug or
any other system component!
Manually Draining An Air Tank:
Step 1)
Disconnect & lockout the compressor from the power source (elec
tric models) or disconnect the spark plug wire from the spark plug
(gas engine models).
Step 2)
Tank(s) subjected to freezing temperatures may contain ice. Store
the compressor in a heated area before attempting to drain mois
ture from the tank(s). Reduce the air pressure in the tank to 30
PSIG by pulling the pressure relief valve ring (refer to Fig. 3-4,
Checking Pressure Relief Valves & Relieving System Pres-
sure).
Step 3)
Slowly open the drain valve and allow the moisture and air mixture
to drain from the tank.
Step 4)
Once the moisture has been completely drained, close the drain
valve.
Air Tank Inspection
Quincy Compressor recommends that all
air tanks be inspected at scheduled inter
vals. Refer to Fig. 3-5 Recommended
Air Tank Inspection Intervals for
relative information. Measure tank wall
thickness at several locations, including
the lowest point where condensation can
accumulate.
Refer to federal, state or provincial,
or local codes for mandatory air tank
maintenance information.
WARNING !
WARNING !
WARNING !
Tank
Capacity
Horizontal
or
Vertical
Minimum Allowable
Wall Thickness
Visually
Inspect
Hydrostatically
Inspect
Head
Shell
30 Gal.
Horizontal
.094
.106
Yearly
10 Years
30 Gal.
Vertical
.109
.111
Yearly
10 Years
60 Gal.
Horizontal
.109
.135
Yearly
10 Years
60 Gal.
Vertical
.109
.111
Yearly
10 Years
80 Gal. Horizontal
.109
.135
Yearly
10 Years
80 Gal.
Vertical
.131
.133
Yearly
10 Years
120 Gal. Horizontal
.131
.162
Yearly
10 Years
120 Gal.
Vertical
.163
.199
Yearly
10 Years
200 Gal. Horizontal
.163
.199
Yearly
10 Years
240 Gal. Horizontal
.163
.199
Yearly
10 Years
Fig. 3-5 Recommended Air Tank Inspection Intervals
Содержание QR-25 210
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