1. No category

Regulator
Series AR10
to 60
How to Order
AR 30 F 03 BE 1N
Option
Symbol
Applicable model
AR10 to 60
AR10 to 60
AR10 to 60
AR10 to 60
AR10 to 60
∗ When more than one specification is required, indicate in ascending
alphanumeric order.
Note 1) This product is for overseas use only according to the new
Measurement Law. (The SI unit type is provided for use in
Japan.)
Note 2) The only difference from the standard specifications is the
adjusting spring for the regulator. It does not restrict the setting
Accessory of 0.2 MPa or more.
Regulator
Body size
10 20 25 30 40 50 60
Thread type
AR20
Nil
N
F
Metric thread (M5)
Rc
NPT
G
Port size
Body size
Symbol
Port
size
10
20
25
30
40
50
60
M5
01
02
03
04
06
10
M5
1/8
1/4
3/8
1/2
3/4
1
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
AR40
Description
0.02 to 0.2 MPa setting
1 (2)
N
Non-relieving
Flow direction: Right Left
R
Upward handle
Y
Z (3) Name plate and pressure gauge in imperial units (PSI, °F)
Symbol
Nil
B
E
G
H
Applicable model
Description
—
—
AR10 to 60
With bracket
With square embedded type pressure gauge (With limit indicator) AR20 to 60
AR10
With round pressure gauge (Without limit indicator)
AR20 to 60
With round pressure gauge (With limit indicator)
AR10 to 40
With set nut (For panel mount)
Note) Optional parts are not assembled and are supplied loose at the time of
shipment (except option E).
: Combination available
: Varies depending on the model
Accessory/Optional Specifications Combinations
JIS Symbol
Combination
Accessory
Accessory/Optional specifications
With bracket (With set nut)
Square embedded type pressure gauge
Round pressure gauge
With set nut (For panel mount)
Optional
specifications
P. 14-2-52/53
0.02 to 0.2 MPa setting
Non-relieving type
Flow direction: Right Left
Upward handle
Name plate and pressure gauge
in imperial units (PSI, °F)
Symbol
Accessory
B
E
G
Optional specifications
H
1
N
R
Y
: Combination not available
: Available only with NPT thread
Applicable regulator
Z
Set nut
(2)
1 MPa
0.2 MPa
Round type
Square
embedded type
(4)
Round type
Square
embedded type
AR25
(4)
IR
VEX
AMR
ITV
IC
G
PPA
AR30
AR40
AR40-06
AR50
AR60
(5)
AR50P-270AS (5)
AR10P-260S
AR20P-260S
AR25P-260S
AR30P-260S
AR40P-260S
AR40P-260S
—
G27-10-R1
G36-10-01
G36-10-01
G36-10-01
G46-10-02
G46-10-02
G46-10-02
—
GC3-10AS
GC3-10AS
GC3-10AS
GC3-10AS
GC3-10AS
GC3-10AS
GC3-10AS
G27-10-R1 (3)
G36-2-01
G36-2-01
G36-2-01
G46-2-02
G46-2-02
G46-2-02
G46-2-02
—
GC3-2AS
GC3-2AS
GC3-2AS
GC3-2AS
GC3-2AS
GC3-2AS
GC3-2AS
Note 1) Assembly includes a bracket and set nuts.
Note 2) in part numbers for a round pressure gauge indicates a type of
connection thread. No indication is necessary for R; however,
indicate N for NPT.
Please contact SMC regarding the connection thread NPT and
pressure gauge supply for PSI unit specifications.
AR
VY1
AR10P-270AS AR20P-270AS AR25P-270AS AR30P-270AS AR40P-270AS AR40P-270AS AR50P-270AS
Bracket assembly (1)
Pressure
gauge
AR20
AF
VE
Accessory Part No.
AR10
AU
VBA
B
E
G
H
-1
-N
-R
-Y
-Z
Model
AR20
AR25
AR30
AR40
AR40-06
AR50
AR60
AR10
Port size
1/4, 3/8
1/8, 1/4
1/4, 3/8
1/4, 3/8, 1/2
3/4
3/4, 1
1
M5 x 0.8
Fluid
Air
1.5 MPa
Proof pressure
1.0 MPa
Maximum operating pressure
0.05 to 0.85 MPa
Set pressure range
0.05 to 0.7 MPa
Pressure gauge port size (1)
Rc 1/16 (2) Rc, NPT, G 1/8 Rc, NPT, G 1/8 Rc, NPT, G 1/8 Rc, NPT, G 1/4 Rc, NPT, G 1/4 Rc, NPT, G 1/4 Rc, NPT, G 1/4
Relief pressure
Set pressure + 0.05 MPa (3) (at relief flow rate of 0.1 l/min (ANR))
Ambient and fluid temperature
–5 to 60°C (With no freezing)
Relieving type
Construction
Weight (kg)
0.06
0.26
0.21
0.44
0.47
1.17
1.22
0.29
Note 1) Pressure gauge connection threads are not required for regulator with a square embedded type pressure gauge (AR20 to AR60).
Note 2) Use a bushing (part no: 131368) when connecting the R 1/8 pressure gauge to the R 1/16 gauge port.
Note 3) Except AR10.
Applicable model
AV
AR10 AR20 to 40 AR50 to 60
Standard Specifications
Accessory
F.R.L.
(6)
— (6)
G46-10-02
Note 3) For 1.0 MPa.
Note 4) Includes one O-ring and 2 mounting screws.
Note 5) Assembly includes a bracket and 2 mounting screws.
Note 6) Please contact SMC regarding the set nuts for AR50 and AR60.
14-2-47
AL
Series
AR10 to 60
Flow Characteristics (Representative values)
AR40
0.5
0.5
Outlet pressure (MPa)
0.6
0.4
0.3
0.2
0.1
00
25
50
75
100
125
0.3
0.2
1000
Flow rate (l/min (ANR))
AR20
Rc 1/4
0.5
0.5
0.4
0.3
0.2
0.4
0.3
0.2
200
400
600
0
0
800
Flow rate (l/min (ANR))
AR25
Rc 3/8
2000
3000
4000
AR50
0.6
0.5
0.5
0.4
5000
0.3
0.2
Rc 1
0.4
0.3
0.2
0.1
500
1000
0
0
1500
Flow rate (l/min (ANR))
AR30
5000
10000
Flow rate (l/min (ANR))
Rc 3/8
AR60
0.6
0.6
0.5
0.5
Outlet pressure (MPa)
Outlet pressure (MPa)
1000
Flow rate (l/min (ANR))
0.6
0.4
0.3
0.2
0.1
0
0
Rc 3/8
0.1
0.1
Orange mark
3000
AR40-06
0.6
0
0
2000
Flow rate (l/min (ANR))
0.6
0
0
Rc 1
0.4
0.3
0.2
0.1
500
1000
Flow rate (l/min (ANR))
14-2-48
0.4
00
150
0.1
2. A knob cover is available to prevent
careless operation of the knob. Refer to
page 14-2-6 for details.
3. Please contact SMC when using the
regulator between a solenoid valve and an
actuator.
Rc 1/2
0.1
Outlet pressure (MPa)
Caution
1. Be sure to unlock the knob before
adjusting the pressure and lock it after
setting the pressure.
Failure to follow this procedure can cause
damage to the knob and the outlet
pressure may fluctuate.
• Pull the pressure regulator knob to
unlock. (You can visually verify this with
the “orange mark” that appears in the
gap.)
• Push the pressure regulator knob to lock.
When the knob is not easily locked, turn it
left and right a little and then push it
(when the knob is locked, the “orange
mark”, i.e., the gap will disappear).
M5
0.6
Outlet pressure (MPa)
Warning
1. Set the regulator while verifying the
displayed values of the inlet and outlet
pressure gauges. Turning the knob
excessively can cause damage to the
internal parts.
2. The pressure gauge included with
regulators for 0.02 to 0.2 MPa setting is for
up to 0.2 MPa use only. Exceeding 0.2
MPa of pressure can damage the gauge.
Nevertheless, the gauge for the AR10
regulator with 0.02 to 0.2 MPa setting is
for up to 1.0 MPa use.
3. Do not use tools on the pressure regulator
knob as this may cause damage. It must
be operated manually.
Outlet pressure (MPa)
Mounting & Adjustment
Outlet pressure (MPa)
Be sure to read before handling.
Refer to pages 14-21-3 to 14-21-4
for Safety Instructions and Common Precautions.
AR10
Outlet pressure (MPa)
Precautions
Condition: Inlet pressure 0.7 MPa
1500
0
0
5000
Flow rate (l/min (ANR))
10000
Regulator
Pressure Characteristics (Representative values)
AR10
Series
AR10 to 60
Conditions:
Inlet pressure 0.7 MPa
Outlet pressure 0.2 MPa
Flow rate 20 l/min (ANR)
AR40
0.3
Set point
Outlet pressure (MPa)
0.25
0.2
0.15
Outlet pressure (MPa)
0.25
Set point
0.2
F.R.L.
AV
0.15
00 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
00 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
Inlet pressure (MPa)
Inlet pressure (MPa)
AR20
AF
AR40-06
AR
0.25
Set point
0.2
Outlet pressure (MPa)
0.25
Outlet pressure (MPa)
AU
1
0.15
IR
Set point
VEX
AMR
0.2
ITV
IC
0.15
00 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
00 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
Inlet pressure (MPa)
1
VBA
Inlet pressure (MPa)
VE
0.25
0.25
VY1
Set point
0.2
0.15
Outlet pressure (MPa)
AR50
Outlet pressure (MPa)
AR25
PPA
0.2
AL
0.15
00 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
00 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
Inlet pressure (MPa)
1
Inlet pressure (MPa)
AR60
0.25
0.25
Set point
0.2
0.15
Outlet pressure (MPa)
AR30
Outlet pressure (MPa)
G
Set point
Set point
0.2
0.15
00 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
Inlet pressure (MPa)
1
00 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
Inlet pressure (MPa)
14-2-49
AR10 to 60
Series
Construction
AR10
AR20/25
t
t
q
IN
e
OUT
IN
e
OUT
q
r
r
w
w
AR30/40
AR50/60
t
q
t
q
e
e
IN
OUT
IN
OUT
r
w
w
r
Component Parts
No.
Description
q
w
Body
Bonnet
Material
Note
AR25 to 40(-60)
AR50/60
AR10/20
Platinum silver
Zinc die-casted
Aluminum die-casted
Black
Polyacetal
Aluminum die-casted
Replacement Parts
No.
Description
Materials
Part no.
AR10
AR20
AR25
AR40
AR40-06
AR50
AR60
(2)
(2)
(2)
(2)
(2)
(2)
(2)
Stainless
steel
e Valve assembly
AR10P-090S AR20P-410AS AR25P-410AS AR30P-410AS AR40P-410AS AR40P-410AS AR50P-410AS AR60P-410AS
Brass, HNBR
r Diaphragm assembly Weatherability NBR AR10P-150AS (1) AR20P-150AS AR25P-150AS AR30P-150AS AR40P-150AS AR40P-150AS AR50P-150AS AR50P-150AS
t Valve guide assembly
131329
AR20P-050AS AR25P-050AS AR30P-050AS AR40P-050AS AR40P-050AS AR50P-050AS AR60P-050AS
POM
Note 1) AR10 is a piston and gasket (KSYP-13) type assembly.
Note 2) Assembly includes valve, valve spring and stem assembly.
14-2-50
AR30
Regulator
Series
AR10 to 60
Dimensions
AR10 to 40
Panel fitting dimension
Port size
Square embedded type
pressure gauge (Option)
D
U
C
A
IN
OUT
S
G
IN
Plate thickness
AR10 to AR30: Max. 3.5
AR40: Max. 5
L
B
Pressure gauge
(Option)
OUT
T
V
M
Pressure gauge
port
Q
N
F
K
P
AV
AU
AF
J
E
F.R.L.
Bracket
(Option)
AR
IR
AR50/60
VEX
Port size
Square embedded type
pressure gauge (Option)
D
AMR
ITV
C
A
OUT
IC
G
IN
VBA
L
B
Pressure gauge
(Option)
VE
Pressure gauge
port
M
VY1
G
N
Bracket
(Option)
Q
K
P
PPA
AL
F
E
J
(mm)
Model
Port size
AR10
M5 x 0.8
AR20
1/8, 1/4
AR25
1/4, 3/8
AR30
1/4, 3/8
1/4, 3/8, 1/2
AR40
3/4
AR40-06
3/4, 1
AR50
1
AR60
Standard specifications
A
25
40
53
53
70
75
90
95
C
11
26.5
28
31
36
36
43
46
B
58
94
101
116
128
129
169
176
D
25
57
55
59
68
68
87
87
Accessory specifications
With pressure gauge
E
26
65
64
66
74
74
84
84
F
—
29.5
28.5
30.5
35
35
44.5
44.5
G
0
2 Note)
0
3.5
3.5
3
3.3
3.3
Bracket mounting size
J
25
30
30
41
50
50
70
70
K
28
34
34
40
54
54
66
66
L
30
44
44
46
54
56
65.8
65.8
M
4.5
5.4
5.4
6.5
8.5
8.5
11
11
N
6.5
15.4
15.4
8
10.5
10.5
13
13
Panel mount
P
40
55
55
53
70
70
90
90
Q
2
2.3
2.3
2.3
2.3
2.3
3.2
3.2
S
18
25
26
31
35.5
37
—
—
T
18.5
28.5
32.5
38.5
42.5
42.5
—
—
U
—
14
16
19
21
21
—
—
V
—
6
6
7
7
7
—
—
Note) For AR20 only, the position of the pressure gauge is above the center of the piping.
14-2-51
Regulator Series AR20 to 60
Made to Order Specifications:
Please contact SMC for detailed dimensions, specifications, and lead times.
1. Special Temperature Environment
2. High Pressure
Special materials are used in the manufacturing of seals and
resin parts to allow them to withstand various temperature
conditions in cold or tropical (hot) regions.
Strong materials are used in the manufacturing of air filters
intended for high pressure operation. Also construction
modification allows a wider regulating pressure range.
Specifications
Specifications
-X430
-X440
Part no.
Low temperature
High temperature
Environment
–30 to 60°C
–5 to 80°C
Ambient temperature
–5 to 60°C (With no freezing)
Fluid temperature
Rubber parts
Special NBR
FPM
Material
Metal (Aluminum die-casted)
Main metal parts
-X425
Part no.
3.0 MPa
Proof pressure
2.0 MPa
Max. operating pressure
0.1 to 1.6 MPa
Set pressure range
Ambient and fluid temperature –5 to 60°C (With no freezing)
Applicable Model
Applicable Model
Model
AR25
AR30
AR40 AR40-06
1/4, 3/8 1/4, 3/8 1/4, 3/8, 1/2
3/4
Port size
AR50
3/4, 1
AR60
1
Model
AR20 AR25 AR30 AR40 AR40-06 AR50
3/4, 1
Port size 1/8, 1/4 1/4, 3/8 1/4, 3/8 1/4, 3/8, 1/2 3/4
How to Order
How to Order
AR 30 F 03 BG 1N X430
Regulator
Body size
For high/low
temperature
25 30 40 50 60
X430 Low temperature
X440 High temperature
Thread type
Rc
NPT
G
Nil
N
F
AR 30 F 03 BG N X425
Regulator
Body size
For high
pressure
20 25 30 40 50 60
Thread type
Rc
NPT
G
Nil
N
F
Port size
02
03
04
06
10
Port size
Body size
Port
Symbol
size
25
—
—
—
1/4
3/8
1/2
3/4
1
30
—
—
—
40
—
50
—
—
—
Symbol
60
—
—
—
—
01
02
03
04
06
10
Option (1)
Symbol
Nil
B
G (2)
H
Description
—
With bracket
With round pressure gauge (With limit indicator)
With set nut (For panel mount)
Applicable model
—
AR25 to 60
AR25 to 60
AR25 to 40
Note 1) Optional parts are not assembled and are
supplied loose at the time of shipment.
Note 2) Mounting thread for pressure gauge: 1/8 for
AR25 to 30; 1/4 for AR40 to 60
Pressure gauge type: G43
Option
Symbol
AR60
1
Port
size
1/8
1/4
3/8
1/2
3/4
1
Body size
20
—
—
—
—
25
—
—
—
—
30
—
—
—
—
40
—
—
50
—
—
—
—
60
—
—
—
—
—
Option (1)
Symbol
Nil
B
G (2)
H
Description
—
With bracket
With round pressure gauge (With limit indicator)
With set nut (For panel mount)
Applicable model
—
AR20 to 60
AR20 to 60
AR20 to 40
Note 1) Optional parts are not assembled and are
supplied loose at the time of shipment.
Note 2) Mounting thread for pressure gauge: 1/8 for
AR20 to 30; 1/4 for AR40 to 60
Description
Applicable model
1 (3)
0.02 to 0.2 MPa setting
AR25 to 60
Option
N
Non-relieving type
AR25 to 60
Symbol
Description
Applicable model
Flow direction: Right Left
R
AR25 to 60
Non-relieving
N
AR20 to 60
Upward handle
Y
AR25 to 60
Flow direction: Right Left
R
AR20 to 60
AR25 to 60
Z (4) Name plate and pressure gauge in imperial units (PSI, °F)
Upward handle
AR20 to 60
Y
∗ When more than one specification is required, indicate in ascending
Z (3) Name plate and pressure gauge in imperial units (PSI, °F) AR20 to 60
alphanumeric order.
∗ When more than one specification is required, indicate in
Note 3) The only difference from the standard specifications is the
ascending alphanumeric order.
adjusting spring for the regulator. It does not restrict the
Note 3) For thread type NPT.
setting of 0.2 MPa or more.
This product is for overseas use only according to the
Note 4) For thread type NPT.
new Measurement Law. (The SI unit type is provided for
This product is for overseas use only according to the new
use in Japan.)
Measurement Law. (The SI unit type is provided for use in
Japan.)
Note 5) Please consult with SMC for detailed dimensions and available attachments and options.
Note 6) Comes with type T handle.
14-2-52
Regulator Series AR20(K) to AR60(K)
Made to Order Specifications:
Please contact SMC for detailed dimensions, specifications, and lead times.
3. With Digital Pressure Switch
Digital pressure switch (ISE30---L) is supplied loose for mounting on pressure gauge connection port.
Specifications
Applicable Model
-X465
Part no.
ISE30---L
Model
–0.1 to 1
Set pressure range (MPa)
0.001
Pressure Set and display resolution (MPa)
switch
12 to 24 VDC ± 10%, Ripple (p-p) 10%
Power supply voltage
or less (With power supply polarity protection)
45 mA or less (70 mA or less for current output)
Power consumption
F.R.L.
Model AR20(K) AR25(K) AR30(K) AR40(K) AR40(K)-06 AR50(K) AR60(K)
Port size 1/8, 1/4 1/4, 3/8 1/4, 3/8 1/4, 3/8, 1/2
3/4, 1
3/4
1
AV
AU
AF
∗ Pressure gauge port size: 1/8
AR
IR
VEX
AMR
ITV
AR 30 K F 03 B
How to Order
IC
1N X465 A
VBA
Switch specifications
Regulator
Body size
With digital pressure switch
(Series ISE30)
20 25 30 40 50 60
Note 4) Digital pressure switch is not assembled
and are supplied loose at the time of
shipment.
Note 5) Please consult with SMC for detailed
dimensions and available attachments
and options.
Note 6) Refer to SMC catalog CAT.ES100-42 for
detailed specifications and instructions
of digital pressure switch.
Back flow mechanism
Nil Without back flow mechanism
K
With back flow mechanism
Thread type
Nil
N
F
Rc
NPT
G
1 (2)
N
R
Y
Z (3)
01
02
03
04
06
10
1/8
1/4
3/8
1/2
3/4
1
Body size
20
25
30
40
50
60
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Description
0.02 to 0.2 MPa setting
Non-relieving type
Flow direction: Right Left
Upward handle
Name plate and pressure gauge in imperial units (PSI, °F)
Applicable model
AR20(K) to 60(K)
AR20(K) to 60(K)
AR20(K) to 60(K)
AR20(K) to 60(K)
AR20(K) to 60(K)
Option (1)
Nil
B
H
Description
—
With bracket
With set nut (For panel mount)
VY1
G
AL
∗ When more than one specification is required, indicate in ascending
alphanumeric order.
Note 2) The only difference from the standard specifications is the adjusting
spring for the regulator. It does not restrict the setting of 0.2 MPa or
more.
Note 3) For thread type NPT.
This product is for overseas use only according to the new
Measurement Law. (The SI unit type is provided for use in Japan.)
Symbol
VE
PPA
Option
Symbol
Port size
Port
Symbol size
(4)
Symbol Output specifications
A
NPN output
B
PNP output
C
1 to 5 V output
D
4 to 20 mA output
Applicable model
—
AR20(K) to 60(K)
AR20(K) to 40(K)
Note 1) Optional parts are not assembled and are supplied loose at the time of
shipment.
14-2-53
Regulator with Back Flow Mechanism
Series AR20K
to 60K
How to Order
Regulator with a built-in
mechanism that ensures a
quick release of the outlet air
pressure (built-in check valve
with back flow mechanism).
AR 30 K
F 03 BE 1N
Regulator
Body size
Option
Symbol
20 25 30 40 50 60
With back flow mechanism
Note) AR10 comes with a back flow
mechanism as a standard feature.
If the set pressure is below 0.15
MPa, back flow may not occur.
When a backflow mechanism is
required with a set pressure of less
than 0.15 MPa, please ccontact
SMC.
AR20K
Nil
N
F
Circuit diagram
Example 2)
When the air supply is cut off and
releasing the inlet pressure to the
atmosphere, the residual pressure
release of the outlet side can be
ensured for a safety purpose.
Circuit diagram
Rc
NPT
G
Name plate and pressure
(PSI, °F)
∗ When more than one specification is
required, indicate in alphanumeric
order.
Note 2) The only difference from the
standard specifications is the
adjusting spring for the
regulator. It does not restrict
the setting of 0.2 MPa or
more.
Note 3) For NPT thread type.
This product is for overseas
use only according to the new
Measurement Law. (The SI
unit type is provided for use in
Japan.)
Port size
Port
Symbol
size 20
01 1/8 02 1/4 03 3/8 —
04 1/2 —
06 3/4 —
1 —
10
Body size
25 30 40 50 60
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Accessory (1)
Symbol
Description
Applicable model
Nil
B
—
—
E
JIS Symbol
G
H
Model
AR20K to 60K
With bracket
With square embedded type
pressure gauge (With limit indicator) AR20K to 60K
With round pressure gauge
AR20K to 60K
(With limit indicator)
With set nut (For panel mount)
AR20K to 40K
Note 1) Optional parts are not assembled and are
supplied loose at the time of shipment (except
option E).
Standard Specifications
Port size
Applicable model
Z (3) gauge in imperial units AR20K to 60K
Thread type
AR40K
Example 1)
When the pressure in the rear and
the front of the cylinder differs:
Description
1 (2) 0.02 to 0.2 MPa setting AR20K to 60K
N
AR20K to 60K
Non-relieving
R Flow direction: Right Left AR20K to 60K
Y
AR20K to 60K
Upward handle
AR20K
AR25K
AR30K
AR40K
AR40K-06
AR50K
AR60K
1/8, 1/4
1/4, 3/8
1/4, 3/8
1/4, 3/8, 1/2
3/4
3/4, 1
1
Air
Fluid
1.5 MPa
Proof pressure
1.0 MPa
Maximum operating pressure
0.05 to 0.85 MPa
Set pressure range (1)
Pressure gauge port size (2)
Rc, NPT, G 1/8 Rc, NPT, G 1/8 Rc, NPT, G 1/8 Rc, NPT, G 1/4 Rc, NPT, G 1/4 Rc, NPT, G 1/4 Rc, NPT, G 1/4
Set pressure + 0.05 MPa (at relief flow rate of 0.1 l/min (ANR))
Relief pressure
–5° to 60°C (With no freezing)
Ambient and fluid temperature
Relieving type
Construction
0.26
Weight (kg)
0.21
∗ AR10 comes with a back flow mechanism as a standard feature.
Accessory Part No.
Applicable model
0.30
0.45
0.48
1.17
1.22
Note 1) Set the inlet pressure 0.05 MPa or higher than the set pressure.
Note 2) Pressure gauge connection threads are not required for regulators with a
square embedded type pressure gauge (AR20K to AR60K).
AR20K
AR25K
AR30K
AR40K
AR40K-06
AR50K
AR60K
Bracket assembly (1)
AR20P-270AS
AR25P-270AS
AR30P-270AS
AR40P-270AS
AR40P-270AS
Set nut
AR20P-260S
AR25P-260S
AR30P-260S
AR40P-260S
AR40P-260S
AR50P-270AS (3)
— (5)
AR50P-270AS (3)
— (5)
G46-10-02
Accessory
(2)
1.0 MPa
Pressure
gauge
0.2 MPa
Round type
G36-10-01
G36-10-01
G36-10-01
G46-10-02
G46-10-02
G46-10-02
(4)
Square
embedded type
GC3-10AS
GC3-10AS
GC3-10AS
GC3-10AS
GC3-10AS
GC3-10AS
GC3-10AS
Round type
G36-2-01
G36-2-01
G36-2-01
G46-2-02
G46-2-02
G46-2-02
G46-2-02
GC3-2AS
GC3-2AS
GC3-2AS
GC3-2AS
GC3-2AS
GC3-2AS
GC3-2AS
(4)
Square
embedded type
Note 1) Assembly includes a bracket and set nuts.
Note 2) in part numbers for a round pressure gauge indicates a type of connection
thread. No indication is necessary for R; however, indicate N for NPT.
Please contact SMC regarding the connection thread NPT and pressure
gauge supply for PSI unit specifications.
14-2-54
Note 3) Assembly includes a bracket and 2 mounting screws.
Note 4) Includes one O-ring and 2 mounting screws.
Note 5) Please contact SMC regarding the set nut for AR50K and 60K.
Regulator with Back Flow Mechanism
Series
AR20K to 60K
Working Principle
Precautions
A-A
A
w
1
OUT
Be sure to read before handling.
Refer to pages 14-21-3 to 14-21-4
for Safety Instructions and
Common Precautions.
2
IN
Mounting & Adjustment
Warning
SMC
1. Set the regulator while verifying the
displayed values of the inlet and outlet
pressure gauges. Turning the regulator
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.
A
Caution
r
IN
OUT
(Inlet pressure)
(Outlet pressure)
Figure 1
w
Normal
q
e
F.R.L.
AV
AU
AF
AR
IR
1. Be sure to unlock the knob before
adjusting the pressure and lock it after
setting the pressure.
Failure to follow this procedure can cause
damage to the knob and the outlet
pressure may fluctuate.
Inlet pressure Pressure in
(IN) diaphragm chamber
VEX
AMR
ITV
IC
VBA
Figure 3
Orange mark
IN
Figure 2
VE
Back flow
VY1
OUT
Inlet pressure Pressure in
(IN) diaphragm chamber
When the inlet pressure (P1) is higher than the regulating pressure, the check valve
w closes and operates as a normal regulator (Figure 1).
When the inlet pressure (P1) is shut off and released, the check valve w opens and
the pressure in the diaphragm chamber q is released into the inlet side (Figure 2).
This lowers the pressure in the diaphragm chamber q and the force generated by the
pressure regulator spring e lifts the diaphragm. Valve r opens through the stem,
and the outlet pressure is released to the inlet side (Figure 3).
• Pull the pressure regulator knob to
unlock. (You can visually verify this with
the “orange mark” that appears in the
gap.)
• Push the pressure regulator knob to lock.
When the knob is not easily locked, turn it
left and right a little and then push it
(when the knob is locked, the “orange
mark”, i.e., the gap will disappear).
2. A knob cover is available to prevent
careless operation of the knob. Refer to
page 14-2-6 for details.
Maintenance
Warning
1. When using the regulator between a
solenoid valve and an actuator, check the
pressure gauge periodically.
Sudden pressure fluctuations may shorten
the durability of the pressure gauge. A
digital pressure gauge is recommended
for such situation or as deemed
necessary.
14-2-55
G
PPA
AL
Series
AR20K to 60K
Flow Characteristics (Representative values)
Rc 1/4
AR40K-06
0.6
0.6
0.5
0.5
Outlet pressure (MPa)
Outlet pressure (MPa)
AR20K
0.4
0.3
0.2
0.4
0.3
0.2
200
400
600
0
0
800
Flow rate (l/min (ANR))
Rc 3/8
0.6
0.5
0.5
0.4
0.3
0.2
0.1
500
1000
Rc 1
0.2
5000
10000
Flow rate (l/min (ANR))
Rc 3/8
AR60K
0.6
0.6
0.5
0.5
Outlet pressure (MPa)
Outlet pressure (MPa)
5000
0.3
0
0
1500
0.4
0.3
0.2
0.1
Rc 1
0.4
0.3
0.2
0.1
500
1000
1500
Flow rate (l/min (ANR))
AR40K
Rc 1/2
0.5
0.4
0.3
0.2
0.1
1000
2000
Flow rate (l/min (ANR))
0
0
5000
Flow rate (l/min (ANR))
0.6
Outlet pressure (MPa)
4000
0.1
AR30K
14-2-56
3000
0.4
Flow rate (l/min (ANR))
00
2000
AR50K
0.6
0
0
1000
Flow rate (l/min (ANR))
Outlet pressure (MPa)
Outlet pressure (MPa)
AR25K
0
0
Rc 3/8
0.1
0.1
0
0
Condition: Inlet pressure 0.7 MPa
3000
10000
Regulator with Back Flow Mechanism
Pressure Characteristics (Representative values)
AR20K
Set point
0.2
Outlet pressure (MPa)
Outlet pressure (MPa)
Conditions:
Inlet pressure 0.7 MPa
Outlet pressure 0.2 MPa
Flow rate 20 l/min (ANR)
0.25
0.15
Set point
0.2
F.R.L.
AV
0.15
00 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
00 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
Inlet pressure (MPa)
AU
1
Inlet pressure (MPa)
AR25K
AF
AR50K
AR
0.25
Set point
0.2
0.15
Outlet pressure (MPa)
0.25
Outlet pressure (MPa)
AR20K to 60K
AR40K-06
0.25
IR
Set point
VEX
AMR
0.2
ITV
IC
0.15
00 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
00 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
Inlet pressure (MPa)
VBA
1
Inlet pressure (MPa)
AR30K
VE
AR60K
VY1
0.25
Set point
0.2
0.15
Outlet pressure (MPa)
0.25
Outlet pressure (MPa)
Series
G
Set point
PPA
0.2
AL
0.15
00 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
Inlet pressure (MPa)
00 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
Inlet pressure (MPa)
AR40K
Outlet pressure (MPa)
0.25
Set point
0.2
0.15
00 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
Inlet pressure (MPa)
14-2-57
Series
AR20K to 60K
Construction
AR20K to 60K
A-A
A
1
OUT
y
2
IN
SMC
A
t
e
IN
OUT
r
q
w
Component Parts
No.
Description
q
w
Body
Bonnet
Material
AR20K
AR25K to 40K(-06)
AR50K/60K
Zinc die-casted
Aluminum die-casted
Polyacetal
Aluminum die-casted
Note
Platinum silver
Black
Replacement Parts
Material
Description
No.
Part no.
AR20K
AR25K
AR30K
AR40K
AR40K-06
AR40P-410AS
AR40P-410AS
AR50P-410AS
AR60P-410AS
r Diaphragm assembly
Weatherability
AR20P-150AS
NBR
(1)
POM
—
(2)
(2)
AR25P-150AS
AR30P-150AS
AR40P-150AS
AR40P-150AS
AR50P-150AS
AR50P-150AS
AR20P-050AS
AR25P-050AS
AR30P-050AS
AR40P-050AS
AR40P-050AS
AR50P-050AS
AR60P-050AS
AR20KP-020AS
AR20KP-020AS
AR20KP-020AS
AR20KP-020AS
AR20KP-020AS
AR20KP-020AS
AR20KP-020AS
Note 1) Check valve construction includes a check valve cover and 2 screws.
Note 2) Assembly includes valve, valve spring and stem assembly.
14-2-58
(2)
AR60K
(2)
(2)
(2)
Stainless steel
AR20P-410AS
AR25P-410AS
AR30P-410AS
Brass, HNBR
t Valve guide assembly
y Check valve assembly
(2)
AR50K
e Valve assembly
Series
Regulator with Back Flow Mechanism
AR20K to 60K
Dimensions
AR20K to 40K
Panel fitting dimension
Port size
Square embedded type
pressure gauge (Option)
D
U
C
A
IN
OUT
S
M
Pressure gauge
port size
N
F
F.R.L.
AV
Bracket
(Option)
Q
K
P
OUT
Plate thickness
AR20K to AR30K: Max. 3.5
AR40K: Max. 5
L
B
Pressure gauge
(Option)
T
V
G
IN
AU
AF
J
E
AR
IR
VEX
AR50K/60K
Square embedded type
pressure gauge (Option)
A
D
AMR
C
ITV
OUT
IC
G
IN
VBA
L
Pressure gauge
(Option)
B
VE
VY1
M
Pressure gauge
port size
Port size
N
G
Bracket
(Option)
Q
K
P
F
PPA
AL
J
E
(mm)
Model
Port size
1/8, 1/4
AR20K
1/4, 3/8
AR25K
1/4, 3/8
AR30K
1/4, 3/8, 1/2
AR40K
3/4
AR40K-06
3/4, 1
AR50K
1
AR60K
Standard specifications
A
40
53
53
70
75
90
95
B
94
101
116
128
129
169
176
C
26.5
28
31
36
36
43
46
D
57
55
59
68
68
87
87
Accessory specifications
Bracket mounting size
With pressure gauge
E
65
64
66
74
74
84
84
F
29.5
28.5
30.5
35
35
44.5
44.5
G
2 Note)
0
3.5
3.5
3
3.3
3.3
J
30
30
41
50
50
70
70
K
34
34
40
54
54
66
66
L
44
44
46
54
56
65.8
65.8
M
5.4
5.4
6.5
8.5
8.5
11
11
N
15.4
15.4
8
10.5
10.5
13
13
P
55
55
53
70
70
90
90
Panel mount
Q
2.3
2.3
2.3
2.3
2.3
3.2
3.2
S
25
26
31
35.5
37
—
—
T
28.5
32.5
38.5
42.5
42.5
—
—
U
14
16
19
21
21
—
—
V
6
6
7
7
7
—
—
Note) For AR20K only, the position of the pressure gauge is above the center of the piping.
14-2-59
Pilot Operated Regulator
Series AR425
to 935
Standard Specifications
AR425
Model
AR435
AR625
1/4, 3/8, 1/2
Port size
AR635
AR825
3/4, 1
AR835
AR925
AR935
11 4, 11 2
AV
2
AU
Air
Fluid
1.5 MPa
Proof pressure
AF
1.0 MPa
Max. operating pressure
(1)
0.05 to 0.83
Set pressure range (MPa)
Air consumption (for bleed hole) (2)
0.02 to 0.2
0.05 to 0.83
0.02 to 0.2
0.05 to 0.83
0.02 to 0.2
0.05 to 0.83
0.02 to 0.2
5 l/min (ANR) (at maximum pressure)
1 4
Pressure gauge port size
Ambient and fluid temperature
IR
VEX
Internal pilot relieving type (Pilot air is always bleeding.)
Weight (kg)
0.7
1.1
2.5
4.5
AMR
Note 1) Outlet pressure range: P2 is 90% of P1 or less. Note 2) Air consumption differs depending on the set pressure.
Due to the construction, the pressure gap between inlet and outlet cannot be set within 0.03 MPa, even if the handle is
set at the maximum.
ITV
Accessory (Option)/Part No.
IC
Part no.
Model
Bracket
Pressure gauge with limit indicator
Note 1)
Note 2)
AR45
AR65
AR85
AR95
B24P
B25P
—
—
(1)
G46-10-02 (Max. 1.0 MPa), G46-2-02 (Max. 0.2 MPa)
• In the gauge part no. (e.g. G46-10-02), indicate kind of the connecting thread. Put nothing for Rc and “N” for NPT thread.
• Please consult with SMC for NPT pressure gauge.
Use caution not to tighten excessively when mounting a pressure gauge, otherwise it may result in a breakdown. Use a pipe tape for sealing.
Recommended torque: 12 to 14 N·m.
How to Order
Internal pilot operated
relieving type regulator
AR 4 25
02 BG
Option
R
02
03
04
06
10
12
14
20
AR65
0.05 to 0.83 MPa
0.02 to 0.2 MPa
Note 1) Compared with AR25
type, its adjusting spring
will only be different.
Note 2) Compared with AR25
type, its adjusting spring
will only be changed for
0.2 MPa. It is not the
product which does not
allow the pressure more
than 0.2 MPa.
1 4
3 8
1 2
3 4
1
11
11
2
Symbol Description
Nil
B
G
4
Gauge
Port size
Regulating
pressure range
25
35 Note)
None
Flow direction:
Right 씮 Left
Accessory
4 12
6 1
8 11 2
9 2
Applicable model
With bracket AR45 to 65
G46-10-02
G46-2-02
AR25
AR35
∗ Pressure gauges are shipped with
regulator, (but not assembled).
2
Thread type
Nil
N
F
Rc
NPT
G
JIS Symbol
AR65-BG
VE
VY1
PPA
R
Regulator
Body size
VBA
G
Nil
AR85
AR
–5 to 60°C (No freezing)
Construction
Description
F.R.L.
AR425-BG
14-4-15
AL
Series
AR425 to 935
Flow Characteristics
Inlet pressure: 0.7 MPa
Inlet pressure: 0.7 MPa
Pressure
Outlet pressure: 0.2 MPa
Characteristics Flow rate: 20 /min (ANR)
l
Flow rate (l/min (ANR))
Outlet pressure (MPa)
Flow rate (l/min (ANR))
Flow rate (l/min (ANR))
Outlet pressure (MPa)
Outlet pressure (MPa)
Set point
Inlet pressure (MPa)
Outlet pressure (MPa)
AR925/935
Outlet pressure (MPa)
Outlet pressure (MPa)
Inlet pressure (MPa)
Flow rate (l/min (ANR))
AR935
Flow rate (l/min (ANR))
Set point
AR825/835
Outlet pressure (MPa)
Flow rate (l/min (ANR))
AR925
Inlet pressure (MPa)
Flow rate (l/min (ANR))
AR835
Outlet pressure (MPa)
AR825
Set point
AR625/635
Outlet pressure (MPa)
AR635
Outlet pressure (MPa)
AR625
14-4-16
AR425/435
Outlet pressure (MPa)
AR435
Outlet pressure (MPa)
AR425
Flow rate (l/min (ANR))
Set point
Inlet pressure (MPa)
Pilot Operated Regulator
Series
AR425 to 935
Construction
When handle !0 is turned clockwise to
compress pressure adjustment spring i,
the pressure from the IN side passes
through diaphragm !1, opens pilot valve
!2, and enters upper pilot chamber !3.
This pressure and the force generated by
pressure adjustment spring i act as
resistance, resulting in equilibrium. Then,
this pressure passes through diaphragm
y of the main valve and stem !4, and
pushes valve (main valve) u open, thus
guiding the pressure to the OUT side. At
the same time, the pressure passes
through feedback hole !5, and enters
diaphragm chamber !6, thus establishing
the OUT side pressure (outlet pressure).
Relief port
Bleed port
Handle locking screw
Component Parts
No.
q
w
e
r
Replacement Parts
Description
Material
Note
Platinum silver painted
Body
Aluminum die-casted ∗
Platinum silver painted
Bonnet
Aluminum die-casted
Platinum silver painted
Chamber
Aluminum die-casted
Platinum silver painted
Valve guide
Zinc die-casted ∗
∗ In the case of AR825/835/925/935, the material is aluminum alloy.
Part no.
AR825, 835
AR925, 935
AR425, 435
AR625, 635
t!1 Exhaust valve assembly Note)
132586A
132586A
132586A
132586A
y Main valve side diaphragm assembly
13275A
13285A
132581A
132659A
u Valve assembly
132752A
132829A
132572A
132653A
135053 (AR425) 135053 (AR625) 135053 (AR825) 135053 (AR925)
i Adjusting spring
Steel wire
135025 (AR435) 135025 (AR635) 135025 (AR835) 135025 (AR935)
o Valve spring
Stainless steel
132713
13289
135211
132656
!0 Handle
ABS
13414
Note) Diaphragm is included.
No.
Description
Material
Precautions
Be sure to read before handling.
Refer to pages 14-21-3 to 14-21-4
for
Safety
Instructions
and
Common Precautions.
Mounting/Adjustment
Warning
1. Install the valve guide (on the opposite
side of the handle) 60 mm away from
the ground surface to facilitate
maintenance inspection.
2. Do not use the regulator with flow
exceeding the Max. flow indicated in
“Flow Characteristics” as this can cause
failure in pressure adjustment.
Caution
1. Release the lock to adjust the pressure.
After the adjustment, engage the lock.
Failure to observe this procedure could
damage the handle or cause the outlet
pressure to fluctuate.
<Lock operating method>
Loosen the handle locking screw to
unlock it, and tighten it to lock it.
2. Please contact SMC if this product is to
be used between solenoid valve and
actuator.
F.R.L.
AV
AU
AF
AR
IR
VEX
AMR
ITV
IC
VBA
VE
VY1
G
Dimensions
PPA
AR425/435
AR625/635
AR825/835
AR925/935
Pressure gauge port size
Pressure gauge
(Option)
Pressure gauge
port size
AL
Pressure gauge
(Option)
Port size
Port size
Bracket
(Option)
Model
Port size
AR425/435
AR625/635
AR825/835
AR925/935
1/4, 3/8, 1/2
3/4, 1
1 1/4, 1 1/2
2
∗ For products with pressure gauge, pressure gauges are shipped together with product.
Bracket dimensions Bracket part
Pressure gauge port size
A
B
C
D
E
F
no.
G
H
J
3 46.5 48 80
1/4
B24P
80 145.5 39.5 67 73
1/4
78 78.5 7 85
52 90
B25P
98 155 43
1/4
110 94.5 5
126 216 75
1/4
140 109.5 10
160 241 90
14-4-17
Safety Instructions
These safety instructions are intended to prevent a hazardous situation and/or
equipment damage. These instructions indicate the level of potential hazard by labels of
"Caution", "Warning" or "Danger". To ensure safety, be sure to observe ISO 4414 Note 1),
JIS B 8370 Note 2) and other safety practices.
Caution : Operator error could result in injury or equipment damage.
Warning : Operator error could result in serious injury or loss of life.
Danger :
In extreme conditions, there is a possible result of serious injury or loss of life.
Note 1) ISO 4414: Pneumatic fluid power--General rules relating to systems.
Note 2) JIS B 8370: General Rules for Pneumatic Equipment
Warning
1. The compatibility of pneumatic equipment is the responsibility of the person
who designs the pneumatic system or decides its specifications.
Since the products specified here are used in various operating conditions, their compatibility for the
specific pneumatic system must be based on specifications or after analysis and/or tests to meet your
specific requirements. The expected performance and safety assurance will be the responsibility of the
person who has determined the compatibility of the system. This person should continuously review
the suitability of all items specified, referring to the latest catalog information with a view to giving due
consideration to any possibility of equipment failure when configuring a system.
2. Only trained personnel should operate pneumatically operated machinery
and equipment.
Compressed air can be dangerous if an operator is unfamiliar with it. Assembly, handling or repair of
pneumatic systems should be performed by trained and experienced operators.
3. Do not service machinery/equipment or attempt to remove components until
safety is confirmed.
1. Inspection and maintenance of machinery/equipment should only be performed once measures to
prevent falling or runaway of the driver objects have been confirmed.
2. When equipment is to be removed, confirm the safety process as mentioned above. Cut the supply
pressure for this equipment and exhaust all residual compressed air in the system.
3. Before machinery/equipment is restarted, take measures to prevent shooting-out of cylinder piston
rod, etc.
4. Contact SMC if the product is to be used in any of the following conditions:
1. Conditions and environments beyond the given specifications, or if product is used outdoors.
2. Installation on equipment in conjunction with atomic energy, railway, air navigation, vehicles,
medical equipment, food and beverages, recreation equipment, emergency stop circuits, clutch and
brake circuits in press applications, or safety equipment.
3. An application which has the possibility of having negative effects on people, property, or animals,
requiring special safety analysis.
14-21-3
Common Precautions
Be sure to read before handling.
For detailed precautions on every series, refer to main text.
Selection
Warning
1. Confirm the specifications.
Products represented in this catalog are designed for use in
compressed air appllications only (including vacuum), unless
otherwise indicated.
Do not use the product outside their design parameters.
Please contact SMC when using the products in applications
other than compressed air (including vacuum).
Mounting
Warning
1. Instruction manual
Install the products and operate them only after reading the
instruction manual carefully and understanding its contents.
Also keep the manual where it can be referred to as
necessary.
4. Use clean air
If the compressed air supply is contaminated with chemicals,
cynthetic materials, corrosive gas, etc., it may lead to break
down or malfunction.
Operating Environment
Warning
1. Do not use in environments where the product
is directly exposed to corrosive gases,
chemicals, salt water, water or steam.
2. Do not expose the product to direct sunlight
for an extended period of time.
3. Do not use in a place subject to heavy
vibrations and/or shocks.
4. Do not mount the product in locations where it
is exposed to radiant heat.
Maintenance
2. Securing the space for maintenance
When installing the products, please allow access for
maintenance.
3. Tightening torque
When installing the products, please follow the listed torque
specifications.
Piping
Caution
1. Before piping
Make sure that all debris, cutting oil, dust, etc, are removed
from the piping.
2. Wrapping of pipe tape
When screwing piping or fittings into ports, ensure that chips
from the pipe threads or sealing material do not get inside the
piping. Also, when the pipe tape is used, leave 1.5 to 2 thread
ridges exposed at the end of the threads.
Air Supply
Warning
1. Operating fluid
Please consult with SMC when using the product in
applications other than compressed air (including vacuum).
Regarding products for general fluid, please ask SMC about
applicable fluids.
2. Install an air dryer, aftercooler, etc.
Excessive condensate in a compressed air system may cause
valves and other pneumatic equipment to malfunction.
Installation of an air dryer, after cooler etc. is recommended.
3. Drain flushing
If condensate in the drain bowl is not emptied on a regular
basis, the bowl will over flow and allow the condensate to
enter the compressed air lines.
If the drain bowl is difficult to check and remove, it is
recommended that a drain bowl with the auto-drain option be
installed.
For compressed air quality, refer to “Air Preparation
Equipment” catalog.
14-21-4
Warning
1. Maintenance procedures are outlined in the
operation manual.
Not following proper procedures could cause the product to
malfunction and could lead to damage to the equipment or
machine.
2. Maintenance work
If handled improperly, compressed air can be dangerous.
Assembly, handling and repair of pneumatic systems should
be performed by qualified personnel only.
3. Drain flushing
Remove drainage from air filters regularly. (Refer to the
specifications.)
4. Shut-down before maintenance
Before attempting any kind of maintenance make sure the
supply pressure is shut of and all residual air pressure is
released from the system to be worked on.
5. Start-up after maintenance and inspection
Apply operating pressure and power to the equipment and
check for proper operation and possible air leaks. If operation
is abnormal, please verify product set-up parameters.
6. Do not make any modifications to be product.
Do not take the product apart.
Quality Assurance Information
(ISO 9001, ISO 14001)
Reliable quality of products in the global market
To enable our customers throughout
the world to use our products with
even greater confidence, SMC has
obtained certification for international
standards “ISO 9001” and “ISO
14001”, and created a complete
structure for quality assurance and
environmental
controls.
SMC
products pursue to meet its
customers’ expectations while also
considering company’s contribution in
society.
SMC’s quality control system
Make customers our
first priority, offering
them reliable and
friendly service.
Produce the highest
quality with the
participation of all
employees.
Create new
products using the
latest technology,
and offer the finest
products in a
timely manner.
Quality policies
Market research
Product planning
After service
Sales coordination
Quality management system
ISO 9001
This is an international standard for quality control
and quality assurance. SMC has obtained a large
number of certifications in Japan and overseas,
providing assurance to our customers throughout
the world.
Quality system
education
Training of
suppliers
Research
Education
Design
Training
Development
Production
New product evaluation
Reliability design
Reliability testing
New technical
development
Process control
Inspection, testing, etc.
Initial production control
Quality control activities
Environmental management system
ISO 14001
This is an international standard related to
environmental management systems and
environmental inspections. While promoting
environmentally friendly automation technology,
SMC is also making diligent efforts to preserve
the environment.
14-21-5
SMC Product Conforming to Inter
SMC products complying with EN/ISO, CSA/UL standards are supporting
CE Mark
The CE mark indicates that machines and components meet essential requirements of all the EC Directives
applied.
It has been obligatory to apply CE marks indicating conformity with EC Directives when machines and
components are exported to the member Nations of the EU.
Once “A manufacturer himself” declares a product to be safe by means of CE marking (declaration of
conformity by manufacturer), free distribution inside the member Nations of the EU is permissible.
CE Mark
SMC provides CE marking to products to which EMC and Low Voltage Directives have been applied, in
accordance with CETOP (European hydraulics and pneumatics committee) guide lines.
As of February 1998, the following 18 countries will be obliged to conform to CE mark legislation
Iceland, Ireland, United Kingdom, Italy, Austria, Netherlands, Greece, Liechtenstein, Sweden, Spain, Denmark,
Germany, Norway, Finland, France, Belgium, Portugal, Luxembourg
EC Directives and Pneumatic Components
• Machinery Directive
The Machinery Directive contains essential health and safety requirements for machinery, as applied to
industrial machines e.g. machine tools, injection molding machines and automatic machines. Pneumatic
equipment is not specified in Machinery Directive. However, the use of SMC products that are certified as
conforming to EN Standards, allows customers to simplify preparation work of the Technical Construction File
required for a Declaration of Conformity.
• Electromagnetic Compatibility (EMC) Directive
The EMC Directive specifies electromagnetic compatibility. Equipment which may generate electromagnetic
interference or whose function may be compromised by electromagnetic interference is required to be immune
to electromagnetic affects (EMS/immunity) without emitting excessive electromagnetic affects (EMI/emission).
• Low Voltage Directive
This directive is applied to products, which operate above 50 VAC to 1000 VAC and 75 VDC to 1500 VDC
operating voltage, and require electrical safety measures to be introduced.
• Simple Pressure Vessels Directive
This directive is applied to welded vessels whose maximum operating pressure (PS) and volume of vessel (V)
exceed 50 bar/L. Such vessels require EC type examination and then CE marking.
14-21-6
SMC Product Conforming to International Standards
national Standards
you to comply with EC directives and CSA/UL standards.
Mark of compliance
for CSA/UL
Mark of compliance
for CSA
CSA Standards & UL Standards
UL and CSA standards have been applied in North America (U.S.A. and Canada) symbolizing safety of electric
products, and are defined to mainly prevent danger from electric shock or fire, resulting from trouble with
electric products. Both UL and CSA standards are acknowledged in North America as the first class certifying
body. They have a long experience and ability for issuing product safety certificate. Products approved by CSA
or UL standards are accepted in most states and governments beyond question.
Since CSA is a test certifying body as the National Recognized Testing Laboratory (NRTL) within the
jurisdiction of Occupational Safety and Health Administration (OSHA), SMC was tested for compliance with
CSA Standards and UL Standards at the same time and was approved for compliance with the two Standards.
The above CSA NRTL/C logo is described on a product label in order to indicate that the product is approved
by CSA and UL Standards.
TSSA (MCCR) Registration Products
TSSA is the regulation in Ontario State, Canada. The products that the operating pressure is more than 5 psi
(0.03 MPa) and the piping size is bigger than 1 inch. fall into the scope of TSSA regulation.
Products conforming to CE Standard
With CE symbol for simple visual recognition
In this catalog each accredited product series is indicated with a
CE mark symbol. However, in some cases, every available
models may not meet CE compliance. Please visit our web site
for the latest selection of available models with CE mark.
http://www.smcworld.com
14-21-7
SMC’s Global Service Network
America
Europe
U.S.A. SMC Corporation of America
3011 North Franklin Road Indianapolis, IN 46226, U.S.A.
TEL: 317-899-4440 FAX: 317-899-3102
U.K. SMC Pneumatics (U.K.) Ltd.
Vincent Avenue, Crownhill, Milton Keynes, MK8 0AN, Backinghamshire, U.K.
TEL: 01908-563888 FAX: 01908-561185
CANADA SMC Pneumatics (Canada) Ltd.
6768 Financial Drive Mississauga, Ontario, L5N 7J6 Canada
TEL: 905-812-0400 FAX: 905-812-8686
GERMANY SMC Pneumatik GmbH
Boschring 13-15 D-63329 Egelsbach, Germany
TEL: 06103-4020 FAX: 06103-402139
MEXICO SMC Corporation (Mexico), S.A. DE C.V.
Carr. Silao-Trejo K.M. 2.5 S/N, Predio San Jose del Duranzo
C.P. 36100, Silao, Gto., Mexico
TEL: 472-72-2-55-00 FAX: 472-72-2-59-44/2-59-46
ITALY SMC Italia S.p.A.
Via Garibaldi 62 I-20061 Carugate Milano, Italy
TEL: 02-9271365 FAX: 02-9271365
CHILE SMC Pneumatics (Chile) S.A.
Av. La Montaña 1,115 km. 16,5 P. Norte Parque
Industrial Valle Grande, Lampa Santiago, Chile
TEL: 02-270-8600 FAX: 02-270-8601
ARGENTINA SMC Argentina S.A.
Teodoro Garcia 3860 (1427) Buenos Aires, Argentina
TEL: 011-4555-5762 FAX: 011-4555-5762
BOLIVIA SMC Pneumatics Bolivia S.R.L.
Avenida Beni Numero 4665
Santa Cruz de la Sierra-Casilla de Correo 2281, Bolivia
TEL: 591-3-3428383 FAX: 591-3-3449900
VENEZUELA SMC Neumatica Venezuela S.A.
Apartado 40152, Avenida Nueva Granada, Edificio Wanlac,
Local 5, Caracas 1040-A, Venezuela
TEL: 2-632-1310 FAX: 2-632-3871
FRANCE SMC Pneumatique S.A.
1 Boulevard de Strasbourg, Parc Gustave Eiffel, Bussy Saint Georges, F-77600
Marne La Vallee Cedex 3 France
TEL: 01-64-76-10-00 FAX: 01-64-76-10-10
SWEDEN SMC Pneumatics Sweden AB
Ekhagsvägen 29-31, S-141 05 Huddinge, Sweden
TEL: 08-603-07-00 FAX: 08-603-07-10
SWITZERLAND SMC Pneumatik AG
Dorfstrasse 7, Postfach 117, CH-8484 Weisslingen, Switzerland
TEL: 052-396-3131 FAX: 052-396-3191
AUSTRIA SMC Pneumatik GmbH (Austria)
Girakstrasse 8, A-2100 Korneuburg, Austria
TEL: 0-2262-6228-0 FAX: 0-2262-62285
SPAIN SMC España, S.A.
Zuazobidea 14 Pol. Ind. Júndiz 01015 Vitoria, Spain
TEL: 945-184-100 FAX: 945-184-510
PERU (Distributor) IMPECO Automatizacion Industrial S.A.
AV. Canevaro 752, Lince, Lima, Peru
TEL: 1-471-6002 FAX: 1-471-0935
IRELAND SMC Pneumatics (Ireland) Ltd.
2002 Citywest Business Campus, Naas Road, Saggart, Co. Dublin, Ireland
TEL: 01-403-9000 FAX: 01-466-0385
URUGUAY (Distributor) BAKO S.A.
Galicia 1650 esq. Gaboto C.P. 11200, Montevideo, Uruguay
TEL: 2-401-6603 FAX: 2-409-4306
NETHERLANDS (Associated company) SMC Pneumatics BV
De Ruyterkade 120, NL-1011 AB Amsterdam, Netherlands
TEL: 020-5318888 FAX: 020-5318880
BRAZIL SMC Pneumaticos Do Brasil Ltda.
Rua. Dra. Maria Fidelis, nr. 130, Jardim Piraporinha-Diadema-S.P.
CEP: 09950-350, Brasil
TEL: 11-4051-1177 FAX: 11-4071-6636
GREECE (Distributor) S.Parianopoulos S.A.
7, Konstantinoupoleos Street 11855 Athens, Greece
TEL: 01-3426076 FAX: 01-3455578
COLOMBIA (Distributor) Airmatic Ltda.
Calle 18 69-05 Apart. Aereo 081045 Santa Fe de Bogotá, Colombia
TEL: 1-424-9240 FAX: 1-424-9260
DENMARK SMC Pneumatik A/S
Knudsminde 4 B DK-8300
Odder, Denmark
TEL: 70252900 FAX: 70252901
14-21-20
SMC’s Global Service Network
Europe
Oceania/Asia
FINLAND SMC Pneumatics Finland OY
PL72, Tiistinniityntie 4, SF-02231 ESP00, Finland
TEL: 09-8595-80 FAX: 09-8595-8595
AUSTRALIA SMC Pneumatics (Australia) Pty.Ltd.
14-18 Hudson Avenue Castle Hill NSW 2154, Australia
TEL: 02-9354-8222 FAX: 02-9894-5719
NORWAY SMC Pneumatics Norway A/S
Vollsveien 13C, Granfoss Næringspark N-1366 LYSAKER, Norway
TEL: 67-12-90-20 FAX: 67-12-90-21
NEW ZEALAND SMC Pneumatics (New Zealand) Ltd.
8C Sylvia Park Road Mt.Wellington Auckland, New Zealand
TEL: 09-573-7007 FAX: 09-573-7002
BELGIUM (Distributor) SMC Pneumatics N.V./S.A.
Nijverheidsstraat 20 B-2160 Wommelgem Belguim
TEL: 03-355-1464 FAX: 03-355-1466
TAIWAN SMC Pneumatics (Taiwan) Co.,Ltd.
17, Lane 205, Nansan Rd., Sec.2, Luzhu-Hsiang, Taoyuan-Hsien, TAIWAN
TEL: 03-322-3443 FAX: 03-322-3387
POLAND SMC Industrial Automation Polska Sp.z.o.o.
ul. Konstruktorska 11A, PL-02-673 Warszawa, Poland
TEL: 022-548-5085 FAX: 022-548-5087
HONG KONG SMC Pneumatics (Hong Kong) Ltd.
29/F, Clifford Centre, 778-784 Cheung, Sha Wan Road, Lai Chi Kok, Kowloon,
Hong Kong
TEL: 2744-0121 FAX: 2785-1314
TURKEY (Distributor) Entek Pnömatik San.ve Tic. Ltd. Sti
Perpa Tic. Merkezi Kat:11 No.1625 80270 Okmeydani Istanbul, Türkiye
TEL: 0212-221-1512 FAX: 0212-221-1519
RUSSIA SMC Pneumatik LLC.
36/40 Sredny prospect V.O. St. Petersburg 199004, Russia
TEL: 812-118-5445 FAX: 812-118-5449
CZECH SMC Industrial Automation CZ s.r.o.
Hudcova 78a, CZ-61200 Brno, Czech Republic
TEL: 05-4121-8034 FAX: 05-4121-8034
HUNGARY SMC Hungary Ipari Automatizálási kft.
Budafoki ut 107-113 1117 Budapest
TEL: 01-371-1343 FAX: 01-371-1344
ROMANIA SMC Romania S.r.l.
Str. Frunzei, Nr. 29, Sector 2, Bucharest, Romania
TEL: 01-3205111 FAX: 01-3261489
SLOVAKIA SMC Priemyselná automatizáciá, s.r.o
Nova 3, SK-83103 Bratislava
TEL: 02-4445-6725 FAX: 02-4445-6028
SLOVENIA SMC Industrijska Avtomatilca d.o.o.
Grajski trg 15, SLO- 8360 Zuzemberk, Slovenia
TEL: 07388-5240 FAX: 07388-5249
SOUTH AFRICA (Distributor) Hyflo Southern Africa (Pty.) Ltd.
P.O.Box 240 Paardeneiland 7420 South Africa
TEL: 021-511-7021 FAX: 021-511-4456
EGYPT (Distributor) Saadani Trading & Ind. Services
15 Sebaai Street, Miami 21411 Alexandria, Egypt
TEL: 3-548-50-34 FAX: 3-548-50-34
SINGAPORE SMC Pneumatics (S.E.A.) Pte. Ltd.
89 Tuas Avenue 1, Jurong Singapore 639520
TEL: 6861-0888 FAX: 6861-1889
PHILIPPINES SHOKETSU SMC Corporation
Unit 201 Common Goal Tower, Madrigal Business Park,
Ayala Alabang Muntinlupa, Philippines
TEL: 02-8090565 FAX: 02-8090586
MALAYSIA SMC Pneumatics (S.E.A.) Sdn. Bhd.
Lot 36 Jalan Delima1/1, Subang Hi-Tech Industrial Park, Batu 3 40000 Shah Alam
Selangor, Malaysia
TEL: 03-56350590 FAX: 03-56350602
SOUTH KOREA SMC Pneumatics Korea Co., Ltd.
Woolim e-BIZ Center (Room 1008), 170-5, Guro-Dong, Guro-Gu,
Seoul, 152-050, South Korea
TEL: 02-3219-0700 FAX: 02-3219-0702
CHINA SMC (China) Co., Ltd.
7 Wan Yuan St. Beijing Economic & Technological Development Zone 100176, China
TEL: 010-67882111 FAX: 010-67881837
THAILAND SMC Thailand Ltd.
134/6 Moo 5, Tiwanon Road, Bangkadi, Amphur Muang, Patumthani 12000, Thailand
TEL: 02-963-7099 FAX: 02-501-2937
INDIA SMC Pneumatics (India) Pvt. Ltd.
D-107 to 112, Phase-2, Extension, Noida, Dist. Gautaim Budh Nagar,
U.P. 201 305, India
TEL: (0120)-4568730 FAX: 0120-4568933
INDONESIA (Distributor) P.T. Riyadi Putera Makmur
Jalan Hayam Wuruk Komplek Glodok Jaya No. 27-28 Jakarta 11180 Indonesia
TEL: 021-625 5548 FAX: 021-625 5888
PAKISTAN (Distributor) Jubilee Corporation
First Floor Mercantile Centre, Newton Road Near Boulton Market P.O. Box 6165
Karachi 74000 Pakistan
TEL: 021-243-9070/8449 FAX: 021-241-4589
ISRAEL (Distributor) Baccara Automation Control
Kvutzat Geva 18915 Israel
TEL: 04-653-5960 FAX: 04-653-1445
SAUDI ARABIA (Distributor) Assaggaff Trading Est.
P.O. Box 3385 Al-Amir Majed Street, Jeddah-21471, Saudi Arabia
TEL: 02-6761574 FAX: 02-6708173
14-21-21
NAR Series
Specialty Regulators
Pressure Regulator
NAR425, 435, 625, 635, 825, 835, 925, 935
Specifications
NAR425
Model
Port Size
NAR435
NAR625
1/4 • 3/8 • 1/2
NAR635
NAR825
3/4 • 1
NAR835
NAR925
1 1/4 • 1 1/2
Proof pressure psig (MPa)
220 (1.5)
Max. operating pressure
psig (MPa)
150 (1.0)
NAR935
2
23~140° F (-5° ~ 60° C)
Temperature
Pressure regulating range
psig (MPa)
7-120
(0.05~0.83)
B ody
3-30
(0.02~0.2)
7-120
(0.05~0.83)
3-30
(0.02~0.2)
ADC, AC2A-F ADC, AC2A-F ADC, AC2A-F ADC, AC2A-F
Bonnet
7-120
3-30
7-120
3-30
(0.05~0.83) (0.02~0.2) (0.05~0.83) (0.02~0.2)
AC2A-F
AC2A-F
AC2A-F
AC2A-F
ADC
Chamber
ADC, AC2A-F ADC, AC2A-F ADC, AC2A-F ADC, AC2A-F
AC2A-F
AC2A-F
AC2A-F
AC2A-F
Valve guide
ZDC, AC2A-F ZDC, AC2A-F ZDC, AC2A-F ZDC, AC2A-F
AC2A-F
AC2A-F
AC2A-F
AC2A-F
Weight lbs (kgf)
Bracket
1.54 (0.7)
2.43 (1.1)
5.51 (2.5)
9.92 (4.5)
B24P
B25P
—
—
Option
K50A-MP1.0-N02M (0~160 psig) Std. NAR O 25
Gauge
K50A-MP2.0-N02M (0~30 psig) Std. NAR O 35
How To Order
NAR
4
N
25
02
B
Body size •
4
6
8
9
1/2
1
11/2
2
R
• Option
Nil
R
Pressure regulating range •
25
35
7~120 psig
3~30 psig
None
IN-OUT Reversal
(Right➔Left)
Pipe size (NPT) •
02
04
06
10
12
14
20
1/4
1/2
3/4
1
1 1/4
1 1/2
2
• Accessory
Nil
B
G
None
Bracket
Gauge
®
Return to Menu
151
➜➜
NAR Series
Specialty Regulators
Flow and Pressure Characteristics
NAR425, 435, 625, 635, 825, 835, 925, 935
Flow characteristics
Pressure characteristics
Supply Pressure - 100 psi (0.7 MPa)
Secondary Pressure - 30 psi (0.2 MPa )
Flow - 0.7SCFM (20l/min)
Condition: Supply pressure 100 psig
NPT 1/2
NAR425
NAR435
NPT 1/2
NAR425/435
87
72.5
58
43.5
30
Secondary pressure (psig)
30.5
Secondary pressure (psig)
Secondary pressure (psig)
101.5
30
15
15
0
0
70.6
141.3
Flow (SCFM)
0
212
NPT 1
0
70.6
141.3
Flow (SCFM)
212
NPT 1
NAR635
0
58
43.5
30
30
Secondary pressure (psig)
Secondary pressure (psig)
Secondary pressure (psig)
72.5
15
29
27.6
15
0
70.6
141.3 212 282.5
Flow (SCFM)
NAR825
0
353
NPT 1/2
0
70.6
0
141.3 212 282.5 353
Flow (SCFM)
NPT 1/2
NAR835
30 43.5 58 72.5 87 101.5 116130.5 145
Supply pressure (psig)
NAR825/835
101.5
NPT 1/2
87
72.5
58
43.5
30
Secondary pressure (psig)
30.5
Secondary pressure (psig)
Secondary pressure (psig)
NPT 1
30.5
87
0
30 43.5 58 72.5 87 101.5 116130.5 145
Supply pressure (psig)
NAR625/635
101.5
30
15
29
27.6
15
0
00
141.3
282.5
Flow (SCFM)
424
NAR925
NPT 2
0
141.3
282.5
Flow (SCFM)
0
424
NAR935
30 43.5 58 72.5 87 101.5 116130.5 145
Supply pressure (psig)
NPT 2
NPT 2
NAR925/935
101.5
87
72.5
58
43.5
30
Secondary pressure (psig)
30.5
Secondary pressure (psig)
Secondary pressure (psig)
29
27.6
NAR625
30
15
15
29
27.6
0
00
152
NPT 1/2
141.3
282.5
424
Flow (SCFM)
565
0
141.3
282.5
424
Flow (SCFM)
565
0
30 43.5 58 72.5 87 101.5 116130.5 145
Supply pressure (psig)
®
Return to Menu
➜➜
NAR Series
Specialty Regulators
Pressure Regulator
NAR425, 435, 625, 635, 825, 835, 925, 935
Construction
No.
Name
Material
5
6
7
Exhaust valve assembly
Main valve diaphragm assembly
Valve assembly
8
Regulating spring
SWPB
9
11
Valve spring
Pilot Diaphragm
Repair Kit
SUS304
—
—
NAR425•435
132586A
132581A
132572A
135053(NAR425)
135025(NAR435)
135211
135019-1A
KT-AR4 5
—
—
—
Model
NAR625•635
NAR825•835
NAR925•935
132586A
132586A
132586A
132659A
13275A
13285A
132653A
132752A
132829A
135053(NAR625) 135053(NAR825) 135053(NAR925)
135025(NAR635) 135025(NAR835) 135025(NAR935)
132656
132713
13289
135019-1A
135019-1A
135019-1A
KT-AR8 5
KT-AR6 5
KT-AR9 5
Dimensions
Model
NAR425•435
NAR625•635
NAR825•835
NAR925•935
A
B
3.15
(80)
3.86
(98)
4.96
(126)
6.30
(160)
5.55
(141)
5.98
(151.9)
8.54
(216.9)
9.53
(242)
C
D
E
1.46 2.64 3.01
(37) (67) (76.5)
1.57 3.07 3.23
(40) (78) (82)
2.95 4.33 3.86
(75) (110) (98)
3.50 5.51 4.45
(89) (140) (113)
F
Bracket Dimensions
G
H
0.12 1.83 1.89
(3) (46.5) (48)
0.28 3.35 2.05
(7) (85) (52)
0.20
—
—
(5)
0.39
—
—
(10)
J
3.15
(80)
3.54
(90)
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—
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