SMC Networks AWM20-01 Series User manual

Doc. No. AW-OMZ0061-A
PRODUCT NAME
Mist Separator Regulator
MODEL / Series / Product Number
AWM20-(F,N)01～(F,N)02(B,C,E,E1,E2,E3,E4,G,H,M)(-1,2,6,C,J,N,R,Z,ZA)-D
AWM30-(F,N)02～(F,N)03(B,C,D,E,E1,E2,E3,E4,G,H,M)(-1,2,6,8,J,N,R,W,Z,ZA)-D
AWM40-(F,N)02～(F,N)04(B,C,D,E,E1,E2,E3,E4,G,H,M)(-1,2,6,8,J,N,R,W,Z,ZA)-D

Contents
Page
1. Safety Instructions
2-8
2. Application
9
3. Standard Specifications
9
4. How to Order
10
5. Options
11
6. Structural Drawing and Replacement Parts
12-13
7. Bowl Assembly Specifications
14-21
8. Assembly of Optional Parts
22
9. Operation and Adjustment
23-25
10. Trouble Shooting
26-27
11. How to Replace the Components
28-37
11-1. Diaphragm Assembly Replacement
28
11-2. Bowl Assembly Replacement
29-30
11-3. Element Replacement
31-32
11-4. Valve Assembly Replacement
33-34
11-5. Square Embedded Type Pressure Gauge Replacement
35
11-6. Blanking Plate Assembly Replacement
36
11-7. Plug (with O-ring) Replacement
37
12. Disassembly Drawing
38-39
13. Dimensions
40-41
-1-

-2-
Safety Instructions
These safety instructions are intended to prevent hazardous situations and/or equipment damage. These
instructions indicate the level of potential hazard with the labels of “Caution,” “Warning” or “Danger.” They are all
important notes for safety and must be followed in addition to International Standards (ISO/IEC)*1), and other safety
regulations.
1) ISO 4414: Pneumatic fluid power - General rules and safety requirements for systems and their components
ISO 4413: Hydraulic fluid power - General rules and safety requirements for systems and their components
IEC 60204-1: Safety of machinery - Electrical equipment of machines - Part 1: General requirements
ISO 10218-1: Robots and robotic devices - Safety requirements for industrial robots - Part 1:Robots
etc.
Danger
Danger indicates a hazard with a high level of risk which, if not avoided, will result
in death or serious injury.
Warning
Warning indicates a hazard with a medium level of risk which, if not avoided, could
result in death or serious injury.
Caution
Caution indicates a hazard with a low level of risk which, if not avoided, could result
in minor or moderate injury.
Warning
1. The compatibility of the product is the responsibility of the person who designs the equipment or
decides its specifications.
Since the product specified here is used under various operating conditions, its compatibility with specific
equipment must be decided by the person who designs the equipment or decides its specifications based on
necessary analysis and test results. The expected performance and safety assurance of the equipment will be
the responsibility of the person who has determined its compatibility with the product. This person should also
continuously review all specifications of the product referring to its latest catalog information, with a view to
giving due consideration to any possibility of equipment failure when configuring the equipment.
2. Only personnel with appropriate training should operate machinery and equipment.
The product specified here may become unsafe if handled incorrectly. The assembly, operation and
maintenance of machines or equipment including our products must be performed by an operator who is
appropriately trained and experienced.
3. Do not service or attempt to remove product and machinery/equipment until safety is confirmed.
1. The inspection and maintenance of machinery/equipment should only be performed after measures to
prevent falling or runaway of the driven objects have been confirmed.
2. When the product is to be removed, confirm that the safety measures as mentioned above are implemented
and the power from any appropriate source is cut, and read and understand the specific product precautions
of all relevant products carefully.
3. Before machinery/equipment is restarted, take measures to prevent unexpected operation and malfunction.
4. Our products cannot be used beyond their specifications. Our products are not developed,
designed, and manufactured to be used under the following conditions or environments. Use
under such conditions or environments is not covered.
1. Conditions and environments outside of the given specifications, or use outdoors or in a place exposed to
direct sunlight.
2. Use for nuclear power, railways, aviation, space equipment, ships, vehicles, military application, equipment
affecting human life, body, and property, fuel equipment, entertainment equipment, emergency shut-off
circuits, press clutches, brake circuits, safety equipment, etc., and use for applications that do not conform
to standard specifications such as catalogs and operation manuals.
3. Use for interlock circuits, except for use with double interlock such as installing a mechanical protection
function in case of failure. Please periodically inspect the product to confirm that the product is operating
properly.

-3-
Safety Instructions
Caution
We develop, design, and manufacture our products to be used for automatic control equipment, and
provide them for peaceful use in manufacturing business.
Use in non-manufacturing business is not covered.
Products we manufacture and sell cannot be used for the purpose of transactions or certification specified in the
Measurement Act.
The new Measurement Act prohibits use of any unit other than SI units in Japan.
Limited warranty and Disclaimer/Compliance Requirements
The product used is subject to the following “Limited warranty and Disclaimer” and “Compliance Requirements”.
Read and accept them before using the product.
Limited warranty and Disclaimer
1. The warranty period of the product is 1 year in service or 1.5 years after the product is delivered, whichever is
first.∗2)
Also, the product may have specified durability, running distance or replacement parts. Please consult your
nearest sales branch.
2. For any failure or damage reported within the warranty period which is clearly our responsibility, a replacement
product or necessary parts will be provided.
This limited warranty applies only to our product independently, and not to any other damage incurred due to
the failure of the product.
3. Prior to using SMC products, please read and understand the warranty terms and disclaimers noted in the
specified catalog for the particular products.
*2) Vacuum pads are excluded from this 1 year warranty.
A vacuum pad is a consumable part, so it is warranted for a year after it is delivered.
Also, even within the warranty period, the wear of a product due to the use of the vacuum pad or failure due to
the deterioration of rubber material are not covered by the limited warranty
Compliance Requirements
1. The use of SMC products with production equipment for the manufacture of weapons of mass destruction
(WMD) or any other weapon is strictly prohibited.
2. The exports of SMC products or technology from one country to another are governed by the relevant security
laws and regulations of the countries involved in the transaction. Prior to the shipment of a SMC product to
another country, assure that all local rules governing that export are known and followed.

Precautions for Design
Warning
(1) Do not use the product if no leakage is allowed due to the environment, or if the fluid is not air.
(2) Polycarbonate resin is used for the external parts including the bowl. Organic solvents including
thinner, acetone, alcohol and ethylene chloride; chemicals including sulphuric acid, nitric acid and
hydrochloric acid; cutting oil, synthetic oils, ester-based compressor oil, alkali, kerosene, gasoline,
lock material of screw are harmful. Do not use the product where these are present.
Chemical resistance of polycarbonate and nylon bowl
When the above factors are present or there is some doubt, use a metal bowl for safety.
-4-
Polycarbonate Nylon
Hydrochloric acid
Sulfuric acid
Phosphoric acid
Chromic acid
Sodium hydroxide (Caustic soda)
Potash
Calcium hydroxide (Slack lime) ×
○
Ammonia water
Carbotane of soda
Sodium sulfide
Potassium nitrate ×
△
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 diethyl ×
○
Acetic acid
Methyl ether
Ethyl ether
× ×
Thread-lock fluid
Sea water ×
△
Leak tester
○: Essentially safe. △: Some effects may occur. ×: Effects will occur.
Amino
Methyl amino
Cutting oil
Brake oil additives
Rubber accelerator
Others
-
×
○
Ester
Synthetic oil
Anti-rust additives
Ether
Brake oil additives
×
○
Ketone
Photographic film
Dry cleaning
Textile industries
Alcohol
Antifreeze
Adhesives
Oil
-
×
△
Aromatic series
Coatings
Dry cleaning
×
△
Alkaline
Degreasing of metals
Industrial salts
Water-soluble cutting oil
Inorganic salts
-
Chlorine solvents
Cleaning liquid for metals
Printing ink
Dilution
Type
Chemical name
Application examples
Material
Acid
Acid washing liquid for metals
△
×

(3) Avoid the application where charge and discharge of pressure to/from a standard bowl is switched
frequently. This may damage the bowl.Ametal bowl is recommended in these cases.
(4) Shield from ultra violet light and radiation with protective cover.
(5) A safety device needs to be installed if output pressure is exceeding the set pressure, otherwise
this can cause breakage of outlet device and equipment or lead to malfunction.
Caution
(1) AD27-D with auto drain may have leakage of accumulated drain during pressure exhaust (this
leakage is allowed in their constructions and not considered failure). Be sure to connect piping for
drain.
(2) Allowed air consumption from the exhaust port is 0.1 L/min(ANR) or less.
(3) Please install the product in a location where pulsation is unlikely to occur. When the difference
between the inside and outside exceeds 0.1MPa, the element might be broken
Selection
Warning
(1) Grease used on the internal sliding parts and seals may flow to the outlet side.
(2) N.O. type auto drain should be operated under the following conditions to avoid malfunction.
Operating compressor: 0.75 kW or more, Discharged flow rate: 100 L/min (ANR) or more
When using 2 or more auto drains, multiply the value above by the number of auto drains to find
the capacity of the compressors you will need. For example, when using 2 auto drains, 1.5 kW
(200 L/min (ANR)) of the compressor capacity is required. The operating pressure should be 0.1
MPa or more.
(3) N.C. type auto drain should be operated under the following conditions to avoid malfunction.
Operating pressure forAD27: 0.1 MPa or more, for AD37 and AD47: 0.15 MPa or more.
(4) Removing of residual pressure (removing of outlet pressure) will not be achieved by releasing inlet
pressure. To remove residual pressure, please use the combination of a filter regulator with
backflow function and mist separator.
(5) Long absence of operation or operation with sealed circuit or balancing circuit on the outlet side
may cause set pressure fluctuation.
(6) Set range of outlet pressure shall be 85% or less of the inlet pressure. Operating at a setting
exceeding 85% causes the outlet pressure to be easily affected by fluctuations in flow rate and inlet
pressure, leading to instability.
(7) Since the safety margin is calculated to the maximum value of the set pressure range shown in the
specification table, the pressure setting may be over the maximum value. However, use the
product within the specified range.
(8) Do not use the product with circuit which requires high exhaust sensitivity or set precision.
(9) Do not flow air exceeding the maximum air flow rate. If the maximum air flow rate is momentarily
exceeded, it may cause splashing of drainage and oil on the outlet side, and damage to the
equipment.
-5-

Installation
Warning
(1) Do not drop or apply impact during transportation or installation. It will cause damage to the
product and result in operation failure.
(2) Do not install in areas of high humidity or high temperature. Operation outside of the product
specification range may cause damage to the product or operation failure, or shorten the product
life.
(3) Connect the product ensuring the direction of "1"(IN) and "2"(OUT) for air direction and indicated
arrow. Incorrect connections may cause malfunction.
(4) Install with adequate space for maintenance beneath the product. Refer to section [13.
Dimensions] (p. 40 and p. 41) for necessary space.
(5) Install vertically so that outlet of drain is downward. It cannot be used in horizontal or upward
direction as it may cause operation failure.
Adjustment
Warning
(1) Adjust the set pressure ensuring correct inlet and outlet pressures. Turning the knob excessively
can cause damage to the internal parts.
(2) Do not use tools on the pressure regulator knob as this may cause damage. It must be operated
manually.
Caution
(1) For the product with a pressure gauge, do not apply pressure exceeding the maximum scale of the
pressure gauge in order to protect the gauge.
(2) Adjust the pressure whilst the pressure is increasing. Pressure may become lower than the set
pressure if adjusted by decreasing the value. Rotate the knob clockwise to increase the set
pressure. Counterclockwise to decrease the pressure. Moreover, please lock the knob after setting
pressure.
(3) Outlet pressure may rise when the inlet pressure is discharged and resupplied after pressure
setting. In this case, consume air at the outlet which will bring the pressure closer to the set
pressure.
(4) Outlet pressure may change if the product is used for a long period of time. Please confirm the set
pressure regularly.
(5) When pressure difference between the inlet side and the outlet side is large, chattering may occur.
In that case, please reduce the pressure difference between the inlet and the outlet.
-6-

Piping
Warning
(1) Before piping is connected, it should be thoroughly blown out with air (flushing) or washed to
remove chips, cutting oil and solid foreign material from inside the pipe. Contamination of piping
may cause damage or malfunction.
(2) When screwing together pipes and fittings, etc., be certain that chips from the pipe threads and
sealant do not get inside the pipe. When a sealant tape is used, leave 1 thread ridges exposed at
the end of the threads.
(3) Connect piping/fittings using the recommended torque while holding the female thread side tightly.
Insufficient tightening torque leads to cause of loosening or sealing failure, and excessive
tightening torque leads to cause of breakage of screws. Tightening without holding female thread
applies an excessive force to the piping bracket directly, leading to breakage.
Recommended tightening torque
of tube connection port
Unit: N m
Thread size
1/8
1/4
3/8
1/2
Torque
3 to 5
8 to 12
15 to 20
20 to 25
Recommended tightening torque of
pressure gauge connection port
Unit: N m
Thread size
1/8
Torque
3 to 5
(4) Before using an SMC fitting and S coupler, please refer to "Tightening the threaded portion of the
connection thread" of the Fittings & Tubing Precautions.
(5) Do not apply torsion or bending moment other than the weight of the product itself. External piping
needs to be supported separately as it may cause breakage. Non-flexible piping like steel tube is
susceptible to excessive moment load or vibration. Insert flexible tubes to prevent this.
(6) Drain guide is not equipped with valve function. Be sure to connect piping for drain. No piping for
drain allows the drain and compressed air to exhaust freely. Also, the piping installation should be
performed with drain guide held by spanner to prevent breakage of bowl.
(7) The piping for drain from auto drain should be connected under the following requirements to avoid
operating failure.
Tubing for AD27-D: I.D. ø2.5 (ø3/32") or larger, Length 5 m (200 inch) or shorter
Tubing forAD37, 47(N)-D: I.D. ø4 (ø3/16") or larger, Length 5 m (200 inch) or shorter
Tubing forAD38, 48(N)-D: I.D. ø6.5 (ø1/4") or larger, Length 5 m (200 inch) or shorter
Air Source
Warning
(1) Use clean air. Do not use compressed air containing chemicals, organic solvent, synthetic oil or
corrosive gas as it may be cause of breakage of components or operation failure.
(2) Air containing too much moisture may cause malfunction. Install an air drier or aftercooler before
the product.
Caution
(1) When the element becomes clogged at an early stage, please check the air quality. In addition,
early clogging can be prevented by attaching a pre-filter on the inlet side of the product.
-7-

Maintenance
Warning
(1) Release the pressure in the product to the atmosphere when replacing parts or removing piping.
(2) Maintenance and checks should be done by following the procedure in this operation manual.
Incorrect handling of the product may cause breakage or operation failure of the equipment or
device.
(3) Perform periodical check to find cracks, flaws or other deterioration on resin bowl. If any of these
appear, replace with a new or metal bowl. Otherwise, breakage may occur. Investigate and/or
review the operating conditions if necessary.
(4) Check for dirt in resin bowl periodically. If any dirt is seen, replace with new bowl. If removing dirt by
washing the resin bowl, never use washing material other than neutral detergent. Otherwise, the
bowl is damaged.
(5) Open and close the drain cock manually. The use of tools can result in damage to the product.
(6) Replace the element every 2 years or when the pressure drop at the output pressure from initial
operation becomes 0.1 MPa, whichever comes first, to prevent damage to the element.
(7) Discharge the drain inside the case before it reaches the element assembly. Refer to 9. Operation
and Adjustment (p. 24 and p. 25) for the drain discharging method.
Caution
(1) If an emergency countermeasure is to be taken during setting failure or exhaust leakage, the
internal valve seating part should be checked. If failure such as foreign matter is found, remove it
before performing the emergency countermeasure.
(2) Check the element periodically and replace it with a new one if necessary. If it is found that outlet
pressure drops lower than the normal condition or the flow is restricted during operation, check the
condition of the element.
(3) For the N.C. type auto drain, when there is no pressure, drain which does not operate the auto
drain mechanism will remain in the bowl. It is recommended to release the residual drain manually
at the end of the working day.
-8-

2. Application
3. Standard Specifications
-9-
This product is used for removing oil content and solid foreign matter in the air line as well as
for pressure control.
AWM20-D AWM30-D AWM40-D
Port size 1/8, 1/4 1/4, 3/8 1/4, 3/8, 1/4
Pressure gauge port size Note 1)
Fluid
Ambient and fluid temperature Note 2)
Proof pressure
Max. operating pressure
0.1 to 0.85MPa
Auto drain (N.O)
ー
150L/min(ANR) 330L/min(ANR) 820L/min(ANR)
8cm325cm345cm3
Semi-standard (Steel)
0.23kg 0.35kg 0.66kg
Polycarbonate
Standard (Polycarbonate)
Relieving type
Max. air flow capacity Note 3)
Filtration rating
0.3 μm (99.9% filtered particle size)
Outlet side oil mist concentration
MAX.1.0mg/m3(≒0.8ppm)
Compressed air quality class Note 4)
Auto drain (N.C)
0.15 to 0.85MPa
Set pressure range
0.05 to 0.85MPa
0.1 to 0.85MPa
ISO8573-1:2010[3:4:3]
Model
1/8
Air
-5 to 60 oC (with no freezing)
1.5MPa
1.0MPa
Without auto drain
Drain capacity
Bowl material
Bowl guard
Construction
Weight
Note 1) Pressure gauge connection threads are not available for product with a square enbedded type pressure gauge or
with a digital pressure switch.
Note 2) -5 to 50oC for the products with the digital pressure switch.
Note 3) Inlet pressure is 0.7 MPa and outlet pressure is 0.5 MPa. Flow at 20oC, atmospheric pressure,
and 65% of relative humidity.
The maximum air flow capacity varies depending on the inlet pressure.
Keep the air flow below the maximum air flow capacity to prevent an outflow of lubricant to the outlet side.
Note 4) Based on ISO8573-1:2010 Compressed air - Part 1: Contaminants and purity classes.
The compressed air quality class on the inlet side is [7:4:4].