Datasheet

ManualsBrandsSMC ManualsAutomationModular Controller 50 ... 850kPa, 1500L/min

Air

1.5MPa

1.0MPa

0.05 to 0.85MPa

Set pressure + 0.05MPa

[at relief flow rate of 0.1L/min (ANR)]

–5° to 60°C (with no freezing)

Relieving type

Regulator: Modular Type with Back flow Mechanism

AR20K to 60K

Model

Port sizes

Fluid

Proof pressure

Maximum operating pressure

Set pressure range

Note 1)

Pressure gauge port size

Note 2)

Relief pressure

Ambient and fluid temperature

Construction

Weight (kg)

AR20K

1/8, 1/4

Rc, NPT, G

1/8

0.26

AR25K

1/4, 3/8

Rc, NPT, G

1/8

0.21

AR30K

1/4, 3/8

Rc, NPT, G

1/8

0.30

AR50K

3/4, 1

Rc, NPT, G

1/4

1.17

AR40K

1/4, 3/8, 1/2

Rc, NPT, G

1/4

0.45

AR40K-06

3/4

Rc, NPT, G

1/4

0.48

AR60K

Rc, NPT, G

1/4

1.22

∗ AR10 comes with a back flow mechanism as a standard feature.

Accessory part no.

Accessory

Bracket assembly

Note 1)

Set nut

Pressure

gauge

1.0MPa

0.2MPa

AR30 K F 03 1NBE

Standard specifications

Applicable model

AR20K

AR20P-270AS

AR20P-260S

G36-10-



GC3-10AS

G36-2-



GC3-2AS

AR25K

AR25P-270AS

AR25P-260S

G36-10-



GC3-10AS

G36-2-



GC3-2AS

AR30K

AR30P-270AS

AR30P-260S

G36-10-



GC3-10AS

G36-2-



GC3-2AS

AR40K

AR40P-270AS

AR40P-260S

G46-10-



GC3-10AS

G46-2-



GC3-2AS

AR40K-06

AR40P-270AS

AR40P-260S

G46-10-



GC3-10AS

G46-2-



GC3-2AS

AR50K

AR50P-270AS

Note 3)

—

Note 5)

G46-10-



GC3-10AS

G46-2-



GC3-2AS

AR60K

AR50P-270AS

Note 3)

—

Note 5)

G46-10-



GC3-10AS

G46-2-



GC3-2AS

Accessories

Note 1)

How to Order

Symbol

Nil

Description

—

With bracket

With square embedded type

pressure gauge (with limit indicator)

With round pressure gauge

(with limit indicator)

With set nut (for panel mount)

Applicable model

—

AR20K to 60K

AR20K to 40K

Optional specifications

Symbol

Note 2)

Note 3)

Description

0.02 to 0.2MPa setting

Non-relieving

Flow direction: Right to left

Upward handle

Name plate and pressure

gauge in imperial units

(PSI, °F)

Applicable model

AR20K to 60K

Regulator with a built-in mechanism that

ensures a quick release of the outlet air

pressure (built-in check valve with back

flow mechanism).

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.

Contact SMC regarding the connection thread NPT and pressure gauge supply for PSI unit specifications.

Note 3) Assembly includes a bracket and 2 mounting screws.

Note 4) Includes one O-ring and 2 mounting screws.

Note 5) Contact SMC regarding the set nut for AR50K and 60K.

Example 1)

When the pressure in the rear and

the front of the cylinder differs:

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

AR20K AR40K

∗ 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 0.2MPa 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.)

Note

1) Optional parts are not assembled and are

supplied loose at the time of shipment (ex-

cept for option E).

Note 1) Set the inlet pressure 0.05MPa 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).

Note 2)

Round

Note 4)

Square

embedded type

Note 4)

Square

embedded type

Regulator

With back flow mechanism

Thread type

Body size

Port size

Nil

NPT

Note) AR10 comes with a back flow mechanism

as a standard feature.

If the set pressure is below 0.15MPa, back

flow may not occur. When a backflow

mechanism is required with a set pressure

of less than 0.15MPa, contact SMC.



—



—



—



—



—



Body size

20 25 30 40 50 60

Symbol

Port

size

1/8

1/4

3/8

1/2

3/4

Summary of content (7 pages)

PAGE 1
Regulator: Modular Type with Back flow Mechanism 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 Regulator flow mechanism). AR 30 K F 03 BE 1N Optional specifications Symbol Description 0.02 to 0.
PAGE 2
Regulator with Back Flow Mechanism AR20K to 60K Operating Principle Specific Product Precautions A A-A w 1 OUT Be sure to read before handling. Refer to pages 75 through 78 for safety instructions and F.R.L. unit 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.
PAGE 3
AR20K to 60K Flow Characteristics (Representative values) 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) 3/8 0.6 0.5 0.5 0.4 0.3 0.2 0.1 500 1000 1 0.2 5000 10000 Flow rate L/min (ANR) 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 1 0.4 0.3 0.2 0.1 500 1000 1500 Flow rate L/min (ANR) AR40K 1/2 0.5 0.4 0.3 0.2 0.
PAGE 4
Regulator with Back Flow Mechanism Pressure Characteristics (Representative values) AR20K Set point 0.2 Outlet pressure MPa Outlet pressure MPa 0.25 0.15 Set point 0.2 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 AR50K 0.25 0.25 Set point 0.2 Outlet pressure MPa AR25K Outlet pressure MPa Conditions: Inlet pressure 0.7MPa Outlet pressure 0.2MPa Flow rate 20L/min (ANR) AR40K-06 0.25 0.15 Set point 0.2 0.
PAGE 5
AR20K to 60K Construction AR20K to 60K t e IN OUT r q w A-A A 1 OUT y 2 IN SMC A Parts list No. 1 2 Description Body Bonnet Material AR20K AR25K to 40K (-06) AR50K, 60K Zinc die-cast Aluminum die-cast Polyacetal Aluminum die-cast Note Platinum silver Black Replacement parts No. Description 3 Valve assembly 4 5 6 Diaphragm assembly Valve guide assembly Check valve assembly Note) Material Part no.
PAGE 6
Regulator with Back Flow Mechanism AR20K to 60K Dimensions AR20K to 40K Panel fitting dimension U Port size Square embedded type pressure gauge (option) A C D T V IN IN OUT G OUT L B S Plate thickness AR20K to AR30K: Max. 3.5 AR40K: Max.
PAGE 7
Regulator AR20(K) to AR60(K) Made to Order Specifications Made to Order Contact SMC for detailed dimensions, specifications, and lead times. eWith Digital Pressure Switch Digital pressure switch (ISE30- - - L) is supplied loose for mounting on pressure gauge connection port. Specifications Applicable models –X465 Part number suffix ISE30- - - L Model –0.1 to 1 Set pressure range (MPa) Pressure 0.