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JIS Symbol

Regulator

Regulator with

Backflow Function

• With the backflow function it incorporates a mechanism to exhaust the air pressure in

the outlet side reliably and quickly.

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 en-

sured for a safety purpose.

Example 1)

When the pressure in the rear and

the front of the cylinder differs:

Body size

Description

Without backflow function

With backflow function

Symbol

—

Note 1)

—

Note 3)

With backflow

function

Mounting

Metric thread (M5)

NPT

—

Thread type

1/8

1/4

3/8

1/2

3/4

Port size

Without mounting option

With bracket

With set nut (for panel fitting)

—

Note 4)

Pressure

gauge

Digital

pressure

switch

Without pressure gauge

Square embedded type pressure gauge (with limit indicator)

Round type pressure gauge (without limit indicator)

Round type pressure gauge (with limit indicator)

Round type pressure gauge (with colour zone)

Output: NPN output / Electrical entry: Wiring bottom entry

Output: NPN output / Electrical entry: Wiring top entry

Output: PNP output / Electrical entry: Wiring bottom entry

Output: PNP output / Electrical entry: Wiring top entry

Made to Order

(Refer to pages 55 and 56 for details.)

Regulator

AR10 to AR60

Regulator with Backflow Function

AR20K to AR60K

• Option/Semi-standard: Select one each for a to g.

• Option/Semi-standard symbol: When more than one specification

is required, indicate in ascending alphanumeric order.

Example) AR30K-03BE-1NR

Note 2)

Option

Note 1) Pressure gauge connection threads are not available for F.R.L. unit with a square embedded type pressure gauge (AR20(K) to AR60(K)).

Note 2) Use a bushing (part no:131368) when connecting the R1/8 pressure gauge to the Rc1/16.

Note 3) –5 to 50

°C for the products with the digital pressure switch.

Note 4) Not applicable to the AR10.

Standard Specifications

0.05 to 0.85 MPa

Model

Port size

Pressure gauge port size

Note 1)

Fluid

Ambient and fluid temperature

Note 3)

Proof pressure

Maximum operating pressure

Set pressure range

Relief pressure

Note 4)

Construction

Mass (kg)

AR20(K)AR10

M5 x 0.8

1/16

Note 2)

0.05 to 0.7 MPa

0.06

1/4

1/8, 1/4

0.26

AR25(K)

1/4, 3/8

1/8

0.21

AR30(K)

1/4, 3/8

0.29

AR40(K)

1/4, 3/8, 1/2

0.44

AR40(K)-06

3/4

0.47

AR50(K)

3/4, 1

1.17

AR60(K)

1.22

Note 1) The AR10 type comes with a backflow function as a standard feature. (K is not

available.) When using the AR10 type as w/ backflow function, backflow may

not occur with the set pressure 0.15 MPa or less. Please set the inlet pressure

to at least 0.05 MPa higher than the set pressure.

Note 2) Option B, G, H and M are not assembled and supplied loose at the time of

shipment.

Note 3) Assembly of a bracket and set nuts (AR10, AR20(K) to AR40(K))

Including 2 mounting screws for the AR50(K) and AR60(K)

Note 4) When choosing with H (panel mount), the installation space for lead wires will

be limited. In this case, select “wiring top entry” for the electrical entry. (Select

“wiring bottom entry” when the semi-standard Y is chosen simultaneously.)

Note 5) Only the AR10 has a pressure setting of 0.05 to 0.7 MPa.

Note 6) 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. When the

pressure gauge is attached, a 0.2 MPa pressure gauge will be fitted.

Note 7) For thread type: M5 and NPT. This product is for overseas use only according

to the new Measurement Law. (The SI unit type is provided for use in Japan.)

The digital pressure switch will be equipped with the unit conversion function,

setting to psi initially.

Note 8) For options: E1, E2, E3, E4. This product is for overseas use only according to

the new Measurement Law. (The SI unit is provided for use in Japan.)

Note 9)



: For thread type: M5 and NPT only

Note 10)



: Select with options: E1, E2, E3, E4.

Air

–5 to 60°C (with no freezing)

1.5 MPa

1.0 MPa

Set pressure + 0.05 MPa [at relief flow rate of 0.1 l/min (ANR)]

Relieving type

AR40, AR40KAR20, AR20K

Description

Symbol

—

Note 5)

Note 6)

Set pressure

0.05 to 0.85 MPa setting

0.02 to 0.2 MPa setting

—

Exhaust

mechanism

Relieving type

Non-relieving type

10 20 25 30 40 50

—

Flow direction

Flow direction: Left to right

Flow direction: Right to left

—

Knob

Downward

Upward

—

Note 7)

Note 8)

Pressure unit

Name plate and pressure gauge in imperial units: MPa

Name plate and pressure gauge in imperial units: psi

Digital pressure switch: With unit conversion function

Note 9)

Note 10)

Note 9)

Note 10)

Note 9)

Note 10)

Note 9)

Note 10)

Note 9)

Note 10)

Note 9)

Note 10)

Note 9)

Body size

Semi-standard

Regulator

Series AR10 to AR60

Regulator with Backflow Function

Series AR20K to AR60K