AW-SMU06EN
Page 1 of 4
Inlet pressure
(IN)
Pressure in
diaphragm chamber
IN
OUT
IN
OUT
Pressure in
diaphragm chamber
Inlet pressure
(IN)
Instruction Manual
Filter Regulator
Series AW-B
AW20(K)-B AW40(K)-B Filter Regulator
Filter Regulator with
backflow function
The intended use of this product is to filter and regulate the air in the
pneumatic circuit.
Validated according to ISO 13849, see section 2.
1 Safety Instructions
These safety instructions are intended to prevent hazardous situations
and/or equipment damage. These instructions indicate the level of
potential haz
ard 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 relating to
systems.
ISO 4413: Hydraulic fluid power - - General rules relating to
systems.
IEC 60204-1: Safety of machinery - -Electrical equipment of
machines. (Part 1: General requirements)
ISO 10218-1: Manipulating industrial robots -Safety.etc.
This manual contains essential information for the protection of users
and others from possible injury and/or equipment damage.
Read this manual before using the product, to ensure correct handling,
and read the manuals of related apparatus before use.
Keep this manual in a safe place for future reference.
To ensure safety of personnel and equipment the safety instructions in
this manual must be observed, along with other relevant safety
practices.
Caution
Caution indicates a hazard with a low level of risk
which, if not avoided, could result in minor or
moderate injury.
Warning
Warning indicates a hazard with a medium level
of risk which, if not avoided, could result in death
or serious injury.
Danger
Danger indicates a hazard with a high level of risk
which, if not avoided, will result in death or
serious injury.
Warning
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
1 Safety Instructions - continued
specifications of the product referring to its latest catalogue
information, with a view to giving due consideration to any possibility
of equipment failure when configuring the equipment.
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.
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.
Contact SMC beforehand and take special consideration of safety
measures if the product is to be used in any of the following
conditions.
1) Conditions and environments outside of the given specifications, or
use outdoors or in a place exposed to direct sunlight.
2) Installation on equipment in conjunction with atomic energy,
railways, air navigation, space, shipping, vehicles, military, medical
treatment, combustions and recreation, or equipment in contact with
food and beverages, emergency stop circuits, clutch and brake
circuits in press applications, safety equipment or other applications
unsuitable for the standard specification described in the product
catalogue.
3) An application which could have negative effects on people,
property, or animals requiring special safety analysis outside the
scope of ISO 13849 described in this document.
4) Use in an interlock circuit, which requires the provision of double
interlock for possible failure by using a mechanical protective
function, and periodical checks to confirm proper operation.
Always ensure compliance with relevant safety laws and
standards.
All electrical work must be carried out in a safe manner by a qualified
person in compliance with applicable national regulations.
Caution
The product is provided for use in manufacturing industries.
The product herein described is basically provided for peaceful use in
manufacturing industries.
If considering using the product in other industries, consult SMC
beforehand and exchange specifications or a contract if necessary.
If anything is unclear, contact your nearest sales branch.
2 Specifications
Series
AW
-B
Construction
Relieving type
Max. operating pressure
1.0 MPa
Set pressure range
0.05 to 0.85 MPa
Proof pressure
1.5 MPa
Pressure gauge port size
Note 1)
1/8
Ambient and fluid temperature
Note 2)
-5 to +60 °C (no freezing)
Fluid
Air
Filtration
5 µm
Flow
Refer to 2.2
Drain
capacity
AW20-B
8 (cm
3
)
AW30-B
25 (cm
3
)
AW40-B to AW60-B
45 (cm
3
)
Bowl material
Polycarbonate
Bowl guard
AW20-B
Semi-standard (Steel)
AW30-B to AW60-B
Standard (Polycarbonate)
2 Specifications
– continued
Port size
See Table 2
Weight
See Table 2
Standards
Complies with the basic and
well-tried safety principles of ISO
13849-2:2012
B
10
3.7 million cycles
Note 3)
B
10D
7.4 million cycles
Note 3)
Table 1
Notes:
Note 1) Pressure gauge connection threads are not available for F.R.L.
unit with a square embedded type pressure gauge or with a
digital pressure switch.
Note 2) -5 to +50 °C for the products with the digital pressure switch.
Note 3) Under SMC test conditions. The B
10
figure is estimated from
SMC life tests. The B
10D
figure is derived from B
10
using the
assumption in EN ISO 13849-1:2015 Annex C. Contact SMC for
details.
2.1 Working Principle (Filter Regulator with Backflow Function)
Figure 1 Normal
Figure 2 Backflow
When the inlet pressure is higher than the regulating pressure, the
check valve
②
closes and operates as a normal regulator (Figure 1).
When the inlet pressure is shut off and released, the check valve
②
opens and the pressure in the diaphragm chamber
①
is released into
the inlet side (Figure 2). This lowers the pressure in the diaphragm
chamber
①
and the force generated by the pressure regulator spring
③
lifts the diaphragm. The valve
④
opens through the stem, and the
outlet pressure is released to the inlet side (Figure 2).
2 Specifications
– continued
2.2 Flow characteristics
(Representative values)
Condition: Inlet pressure 0.7 MPa
ORIGINAL INSTRUCTIONS
