Brochure

Be sure to read before handling. Refer to back cover for Safety
Instructions, “Handling Precautions for SMC Products” (M-
E03-3) and the Operation Manual for F.R.L. Precautions.
Please download it via our website, http://www.smcworld.com
Specific Product Precautions
Selection
Pressure drop MPa
0.1
0.08
0.06
0.04
0.02
0
AL40-06-A
Rc 3/4
Flow rate L/min (ANR)
0
Pressure drop MPa
0.1
0.08
0.06
0.04
0.02
0
AL20-A
Rc 1/4
Flow rate L/min (ANR)
0
Pressure drop MPa
0.08
0.1
0.06
0.04
0.02
0
AL30-A
Rc 3/8
Flow rate L/min (ANR)
0
Pressure drop MPa
0.08
0.1
0.06
0.04
0.02
0
AL40-A
Rc 1/2
Flow rate L/min (ANR)
0
1000 2000 3000 4000
2000 4000 6000
2000 4000 6000 8000
2000 4000 6000 8000
Maintenance
Caution
1. Use a check valve (Series AKM) to
prevent back flow of the lubricant
when redirecting the air flow before
the lubricator.
Warning
1. For the AL20-A type, replenish the
lubricant after releasing the inlet
pressure. Lubrication cannot take
place under a pressurized condi-
tion.
2. Adjustment of the oil regulating
valve for models from the AL20-A
to AL40-A should be carried out
manually. Turning it counterclock-
wise increases the dripping amount,
and turning it clockwise reduces
the dripping amount. The use of
tools, etc. can result in damage to
the unit. From the fully closed posi-
tion, three rotations will bring it to
the fully open position. Please do
not rotate it any further than this.
Note that the numbered scale
markings are guidelines for adjust-
ing the position, and not indicators
of the dripping amount.
1. Check the dripping amount once a
day. Drip failure can cause damage
to the components that need lubri-
cation.
Mounting and Adjustment
1. When the bowl is installed, install
them so that the lock button lines
up to the groove of the front (or the
back) of the body to avoid drop or
damage of the bowl.
Caution
Caution
Lock button
P
1
=0.1MPa
P
1
=0.3MPa
P
1
=0.5MPa
P
1
=0.7MPa
P
1
=0.1MPa
P
1
=0.3MPa
P
1
=0.5MPa
P
1
=0.7MPa
P
1
=0.1MPa
P
1
=0.3MPa
P
1
=0.5MPa
P
1
=0.7MPa
P
1
=0.1MPa
P
1
=0.3MPa
P
1
=0.5MPa
P
1
=0.7MPa
Acid
Alkaline
Inorganic
salts
Chlorine
solvents
Aromatic
series
Ketone
Alcohol
Oil
Ester
Ether
Amino
Other
Chemical
name
Type
Application
examples
Material
Polycarbonate
Acid washing liquid
for metals
Degreasing of metals
Industrial salts
Water-soluble cutting oil
Cleansing liquid for metals
Printing ink
Dilution
Coatings
Dry cleaning
Photographic film
Dry cleaning
Textile industries
Antifreeze
Adhesives
Synthetic oil
Anti-rust additives
Brake oil additives
Cutting oil
Brake oil additives
Rubber accelerator
Hydrochloric acid
Sulfuric acid, Phosphoric acid
Chromic acid
Sodium hydroxide (Caustic soda)
Potash
Calcium hydroxide (Slack lime)
Ammonia water
Carbonate of soda
Sodium sulfide
Sulfate of potash
Sulfate of soda
Carbon tetrachloride
Chloroform
Ethylene chloride
Methylene chloride
Benzene
Toluene
Paint thinner
Acetone
Methyl ethyl ketone
Cyclohexane
Ethyl alcohol
IPA
Methyl alcohol
Gasoline
Kerosene
Phthalic acid dimethyl
Phthalic acid dimethyl
Acetic acid
Methyl ether
Ethyl ether
Methyl amino
Thread-lock fluid
Seawater
Leak tester
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







 : Some effects may occur  : Effects will occur
—
—
—
Effects of atmosphere of organic solvents and
chemicals, and where these elements are likely
to adhere to the equipment. Chemical data for
substances causing degradation (Reference)
Flow Characteristics (Representative values)
Warning
1. Do not introduce air from the outlet
side as this can damage the damper.
2.
The standard bowl for the air filter,
filter regulator, and lubricator, as
well as the sight dome for the
lubricator and bowl guard are
made of polycarbonate. Do not
use in an environment where they
are exposed to or come in contact
with organic solvents, chemicals,
cutting oil, synthetic oil, alkali,
and thread lock solutions.
55
Series AL20-A to AL40-A