Quincy Compressor QR-25 Series Instruction Manual page 20

WARNING !
WARNING !
WARNING !
Minimum Allowable
Horizontal
Tank
or
Capacity
Vertical
30 Gal. Horizontal
30 Gal. Vertical
60 Gal. Horizontal
60 Gal. Vertical
80 Gal. Horizontal
80 Gal. Vertical
120 Gal. Horizontal
120 Gal. Vertical
200 Gal. Horizontal
240 Gal. Horizontal
Fig. 3-5 Recommended Air Tank Inspection Intervals
QR-25 Series
52201-107, December 2012
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
compression, causing an explosion, damage to property and injury
to personnel.
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 (electric
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 moisture
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 Pressure).
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
Visually
Wall Thickness
Inspect
Head Shell
.094 .106 Yearly
.109 .111 Yearly
.109 .135 Yearly
.109 .111 Yearly
.109 .135 Yearly
.131 .133 Yearly
.131 .162 Yearly
.163 .199 Yearly
.163 .199 Yearly
.163 .199 Yearly
Quincy Compressor recommends
that all air tanks be inspected at
scheduled intervals. Refer to Fig. 3-5
Hydrostatically
Recommended Air Tank Inspection
Inspect
Intervals for relative information.
Measure tank wall thickness at several
10 Years
locations, including the lowest point
10 Years
where condensation can accumulate.
10 Years
10 Years
Refer to federal, state or provincial,
10 Years
or local codes for mandatory air tank
maintenance information.
10 Years
10 Years
10 Years
10 Years
10 Years
20 3501 Wismann Lane, Quincy IL - 62305-3116
Quincy Compressor