(!)Due to Microsoft's end of support for Internet Explorer 11 on 15/06/2022, this site does not support the recommended environment.
Instead, please kindly use other browsers like Google Chrome, Microsoft Edge or Mozilla Firefox.

7 Million Products, 2,000 Brands.
50,000 Stock items for Same Day Ship Out.

All Categories

Search by Application

inCAD Library

Brands

Brand List

Webcode Seach | Series: #CODE

Keyword suggestions

Part number suggestions

Discontinued Products

Notice of End of Sales for Economy Series Pneumatic Equipment Category. More information.

How can we improve?

How can we improve?

Feedback

Name (Optional)

E-mail Address (Optional)

Tel (Optional)

Thank you for your time.
Your feedback is essential for our continuous improvement
Privacy Policy

Thank you for your cooperation.

Thank you for your time.
Your feedback is essential for our continuous improvement
Please use the inquiry form.

Privacy Policy

Regulator AR10-A to AR40-A (20-AR40-03B-1-A)

Click this image to zoom it.

Move the mouse over the image to zoom

On Sale Till 31/03/2025

SMC

SMC Regulator AR10-A to AR40-A.
[Features]
· Energy saving regulator.
· Pressure drop amount: Improved by up to 50%.

(i)Caution

Refer to the catalog for details on product specifications.
Product images may be representative. Refer to the manufacturer's catalog for details.

Part Number

Configured Part Number is shown.

20-AR40-03B-1-A

Product Specifications
Part Numbers
Catalog

Regulator AR10-A to AR40-A: Detailed Examples

AR10-A: product images

AR20-A: product images

AR30-A: product images

Regulator AR10-A to AR40-A Specifications

Model number notation (standard specifications)

Model number example

-				Code	Contents	(1)
						Body size
						10	20	25	30	40
(2)	Screw Type			No symbol	Metric thread (M5)	●	-	-	-	-
				No symbol	Rc	-	●	●	●	●
				N	NPT	-	●	●	●	●
				F	G	-	●	●	●	●
(3)	Piping connection port diameter			M5	M5	●	-	-	-	-
				01	1/8	-	●	-	-	-
				02	1/4	-	●	●	●	●
				03	3/8	-	-	●	●	●
				04	1/2	-	-	-	-	●
				06	3/4	-	-	-	-	●
(4)	Option ^{Note 1)}	a	Mounting	No symbol	Without optional mounting parts	●	●	●	●	●
				B ^{Note 2)}	With Bracket	●	●	●	●	●
				H	With set nut (for panel mounting) ^{Note 3)}	●	●	●	●	●
		b	Pressure gauge ^{Note 4)}	No symbol	Without pressure gauge	●	●	●	●	●
				G	Round-type pressure gauge (without limit indicator)	●	-	-	-	-
				G	Round-type pressure gauge (with limit indicator)	-	●	●	●	●
				M	Round-type pressure gauge (with color zone)	-	●	●	●	●
(5)	Semi-standard	c	Set pressure ^{Note 5)}	No symbol	0.05 to 0.7‑MPa setting	●	●	●	●	●
		c	Set pressure ^{Note 5)}	1	0.02 to 0.2‑MPa setting	●	●	●	●	●
		d	Exhaust mechanism	No symbol	Relieving type	●	●	●	●	●
		d	Exhaust mechanism	N	Non-relieving type	●	●	●	●	●
		e	Flow direction	No symbol	Flow direction: left → right	●	●	●	●	●
		e	Flow direction	R	Flow direction: right → left	●	●	●	●	●
		f	Handle direction	No symbol	Handle downward	●	●	●	●	●
		f	Handle direction	Y	Handle upward	●	●	●	●	●
		g	Pressure unit	No symbol	Nameplate and pressure gauge units: MPa	●	●	●	●	●
		g	Pressure unit	Z ^{Note 6)}	Nameplate and pressure gauge units: psi	○ ^{Note 7)}	○ ^{Note 7)}	○ ^{Note 7)}	○ ^{Note 7)}	○ ^{Note 7)}

*Note 1) Options B, G, H, M are not assembled and are supplied loose at the time of shipment.
*Note 2) Set nuts are included with the bracket.
*Note 3) Products AR20-B to AR40-B are not interchangeably mountable with previous products AR20 to AR40.
*Note 4) When the pressure gauge is attached, a 1.0 MPa will be fitted for standard (0.7‑MPa setting) type; 0.4 MPa for the 0.2‑MPa type (1.0‑MPa pressure gauge only for the AR10-A).
*Note 5) Pressure can be set higher than the specification pressure in some cases, but use with the pressure within the specified range.
*Note 6) Thread type: NPT. Under new Japanese measurement laws, this product is only available for sale outside of Japan (SI units are used in Japan). Round-type pressure gauge (with color zone): cannot be used in combination with M.
*Note 7) ○ is for thread types M5 and NPT only.

Model number notation (Made-to-order specifications X406)

Made-to-order specifications X406: model number example

-				Code	Contents	(1)
						Body size
						20	25	30	40
(2)	Screw Type			No symbol	Rc	●	●	●	●
				N	NPT	●	●	●	●
				F	G	●	●	●	●
(3)	Piping connection port diameter			01	1/8	●	-	-	-
				02	1/4	●	●	●	●
				03	3/8	-	●	●	●
				04	1/2	-	-	-	●
				06	3/4	-	-	-	●
(4)	^{Note 1)} Option	a	Mounting	No symbol	Without optional mounting parts	●	●	●	●
				B ^{Note 2)}	With Bracket	●	●	●	●
				H	With set nut (for panel mounting) ^{Note 3)}	●	●	●	●
		b	Pressure gauge	No symbol	Without pressure gauge	●	●	●	●
				G	Round-type pressure gauge (with limit indicator)	●	●	●	●
				M	Round-type pressure gauge (with color zone)	●	●	●	●
(5)	Semi-standard	c	Exhaust mechanism	No symbol	Relieving type	●	●	●	●
		c	Exhaust mechanism	N	Non-relieving type	●	●	●	●
		d	Flow direction	No symbol	Flow direction: left → right	●	●	●	●
		d	Flow direction	R	Flow direction: right → left	●	●	●	●
		e	Handle direction	No symbol	Handle downward	●	●	●	●
		e	Handle direction	Y	Handle upward	●	●	●	●
		f	Pressure unit	No symbol	Nameplate and pressure gauge units: MPa	●	●	●	●
		f	Pressure unit	Z ^{Note 4)}	Nameplate and pressure gauge units: psi	○ ^{Note 5)}	○ ^{Note 5)}	○ ^{Note 5)}	○ ^{Note 5)}

*Note 1) Options B, G, H, M are not assembled and are supplied loose at the time of shipment.
*Note 2) Set nuts are included with the bracket.
*Note 3) Only for the AR20-A to AR40-A.
*Note 4) Thread type: NPT is applicable. Under new Japanese measurement laws, this product is only available for sale outside of Japan (SI units are used in Japan). Round-type pressure gauge (with color zone): cannot be used in combination with M.
*Note 5) ○ is for thread type NPT only.

Specifications

Proof pressure	1.5 MPa
Maximum operating pressure	1.0 MPa
Set pressure range ^{Note 1)}	0.05 to 0.4 MPa

*Note 1) Pressure can be set higher than the specification pressure in some cases, but use with the pressure within the specified range.

Applicable models

Model	AR20-A	AR25-A	AR30-A	AR40-A	AR40-06-A
Piping connection port diameter	1/8, 1/4	1/4, 3/8	1/4, 3/8	1/4, 3/8, 1/2	3/4

Model number notation (Made-to-order specifications X2068)

Made-to-order specifications X2068: model number example

-				Code	Contents	(1)
						Body size
						20	25	30	40
(2)	Screw Type			No symbol	Rc	●	●	●	●
				N	NPT	●	●	●	●
				F	G	●	●	●	●
(3)	Piping connection port diameter			01	1/8	●	-	-	-
				02	1/4	●	●	●	●
				03	3/8	-	●	●	●
				04	1/2	-	-	-	●
				06	3/4	-	-	-	●
(4)	^{Note 1)} Option	a	Mounting	No symbol	Without optional mounting parts	●	●	●	●
				B ^{Note 2)}	With Bracket	●	●	●	●
				H	With set nut (for panel mounting) ^{Note 3)}	●	●	●	●
		b	Pressure gauge	No symbol	Without pressure gauge	●	●	●	●
				G	Round-type pressure gauge (with limit indicator)	●	●	●	●
				M	Round-type pressure gauge (with color zone)	●	●	●	●
(5)	Semi-standard	c	Exhaust mechanism	No symbol	Relieving type	●	●	●	●
		c	Exhaust mechanism	N	Non-relieving type	●	●	●	●
		d	Flow direction	No symbol	Flow direction: left → right	●	●	●	●
		d	Flow direction	R	Flow direction: right → left	●	●	●	●
		e	Handle direction	No symbol	Handle downward	●	●	●	●
		e	Handle direction	Y	Handle upward	●	●	●	●
		f	Pressure unit	No symbol	Nameplate and pressure gauge units: MPa	●	●	●	●
		f	Pressure unit	Z ^{Note 4)}	Nameplate and pressure gauge units: psi	○ ^{Note 5)}	○ ^{Note 5)}	○ ^{Note 5)}	○ ^{Note 5)}

*Note 1) Options B, G, H, M are not assembled and are supplied loose at the time of shipment.
*Note 2) Set nuts are included with the bracket.
*Note 3) Only for the AR20-A to AR40-A.
*Note 4) Thread type: NPT is applicable. Under new Japanese measurement laws, this product is only available for sale outside of Japan (SI units are used in Japan). Round-type pressure gauge (with color zone): cannot be used in combination with M.
*Note 5) ○ is for thread type NPT only.

Specifications

Proof pressure	1.5 MPa
Maximum operating pressure	1.0 MPa
Set pressure range	0.05 to 0.85 MPa

Applicable models

Model	AR20-A	AR25-A	AR30-A	AR40-A	AR40-06-A
Piping connection port diameter	1/8, 1/4	1/4, 3/8	1/4, 3/8	1/4, 3/8, 1/2	3/4

Standard specification

Model	AR10-A	AR20-A	AR25-A	AR30-A	AR40-A	AR40-06-A
Piping connection port diameter	M5 × 0.8	1/8, 1/4	1/4, 3/8	1/4, 3/8	1/4, 3/8, 1/2	3/4
Pressure gauge connection port size	1/16 ^Note)	1/8
Applicable fluids	Air
Ambient temperature and working fluid temperature	-5 to +60°C (no freezing)
Proof pressure	1.5 MPa
Maximum operating pressure	1.0 MPa
Set pressure range	0.05 to 0.7 MPa
Structure	Relieving type
Weight (kg)	0.06	0.17	0.19	0.34	0.58	0.60

Note) Use a bushing (part no.: 131368) when connecting R1/8 type pressure gauges to Rc1/16 connection ports.

Options / Part No.

Option specification			Model
Option specification			AR10-A	AR20-A	AR25-A	AR30-A	AR40-A	AR40-06-A
Bracket assembly ^{Note 1)}			AR12P-270AS	AR22P-270AS	AR27P-270AS	AR32P-270AS	AR42P-270AS	AR42P-270AS
Set nut			AR12P-260S	AR22P-260S	AR22P-260S	AR32P-260S	AR42P-260S	AR42P-260S
Pressure gauge	Round-type ^{Note 2)}	Standard	G27-10-R1	G36-10-□01			G46-10-□01
	Round-type ^{Note 2)}	0.02 to 0.2‑MPa setting	G27-10-R1^{Note 3)}	G36-4-□01			G46-4-□01
	Round-type ^{Note 2)} (with color zone)	Standard	-	G36-10-□01-L			G46-10-□01-L
	Round-type ^{Note 2)} (with color zone)	0.02 to 0.2‑MPa setting	-	G36-4-□01-L			G46-4-□01-L

*Note 1) Assembly of a bracket and set nuts.
*Note 2) The □ in the part numbers for round-type pressure gauges indicates the connection thread type. Insert no symbol for Rc, and use "N" for NPT. Contact the manufacturer separately regarding NPT connection thread types and for psi unit specification pressure gauges.
*Note 3) Pressure gauge for standard type.

Structural Drawings

AR10-A structural drawing

AR20-A/40-06-A: structural drawings

Component Parts

Number	Part name	Materials	Model	Additional notes
1	Body	Zinc die-cast	AR10-A	Urban white
1	Body	Die-cast aluminum	AR20-A to AR40-A	Urban white
2	Bonnet	Polyacetal	AR10-A to AR40-A	Urban white

Replacement Parts

Number	Part name	Materials	Part number
Number	Part name	Materials	AR10-A	AR20-A	AR25-A	AR30-A	AR40-A	AR40-06-A
3	Valve assembly	SUS, HNBR	AR10P-090S	AR22P-060AS		AR32P-060AS	AR42P-060AS
4	Diaphragm assembly	Weatherable NBR	AR10P-150AS ^Note)	AR22P-150AS		AR32P-150AS	AR42P-150AS
5	Valve guide assembly	Polyacetal	131329	AR22P-050AS		AR32P-050AS	AR42P-050AS

*Note) The AR10-A is a piston type. Assembly is of a piston and a seal (KSYP-13).

Regulator AR10-A to AR40-A Dimensions

(Unit: mm)

Regulator AR10-A to AR40-A: dimensional drawings

Model	Standard specification								Option specification
	Standard specification								Round-type pressure gauge		Round-type pressure gauge (with color zone)		Bracket mounting dimensions							Panel mount
	P₁	P₂	A	B ^Note)	C	D	F	J	H	J	H	J	M	N	Q	R	S	T	U	V	W	Y	Z
AR10-A	M5 × 0.8	1/16	25	47.4	11	12.5	M18 × 1	12.5	ø26 (diameter 26 mm)	26	-	-	25	28	30	4.5	6.5	40	2	18	18.5	-	-
AR20-A	1/8, 1/4	1/8	40	67.4	23.5	22	M36 × 1.5	22	ø37.5 (diameter 37.5 mm)	58.5	ø37.5 (diameter 37.5 mm)	59.5	30	34	43.9	5.4	15.4	55	2.3	27.3	36.5	17.5	6
AR25-A	1/4, 3/8	1/8	53	70.4	23.5	22	M36 × 1.5	22	ø37.5 (diameter 37.5 mm)	58.5	ø37.5 (diameter 37.5 mm)	59.5	30	34	44.3	5.4	15.4	55	2.3	30.3	36.5	17.5	6
AR30-A	1/4, 3/8	1/8	53	83.5	27	28.5	M45 × 1.5	28.5	ø37.5 (diameter 37.5 mm)	65	ø37.5 (diameter 37.5 mm)	66	41	36	46	6.5	24	65	2.3	32.5	45.5	22.5	7
AR40-A	1/4, 3/8, 1/2	1/8	70	100	33.5	34.5	M52 × 1.5	34.5	ø42.5 (diameter 42.5 mm)	72	ø42.5 (diameter 42.5 mm)	72	50	38	54	8.5	26.5	70	2.3	38.4	52.5	26	7
AR40-06-A	3/4	1/8	75	101.5	33.5	34.5	M52 × 1.5	34.5	ø42.5 (diameter 42.5 mm)	72	ø42.5 (diameter 42.5 mm)	72	50	38	55.5	8.5	26.5	70	2.3	39.9	52.5	26	7

*Note) The dimension B is the length when the filter regulator knob (handle) is unlocked.

: 30; 45; 60

Part Number
20-AR40-03B-1-A

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	Operating Environment	Exhaust Mechanism	Supply Side, Connection Type	Supply Side, Connection Dia.	Flow Direction	Control Side, Connection Type	Control Side, Connection Dia.	Pressure Gauge	Size of Body	Accessory	Set Pressure	Pressure Unit	Custom-made Specifications	Handle Direction / Position
	-	1 Piece(s)		Quote	Copper-free/Fluorine-free	[Provided] Relief	Rc	3/8	[(Right)] Left→Right	Rc	3/8	[Not Provided] No Pressure Gauge	40	With Bracket	0.02 to 0.2 MPa	Product name plate and pressure gauge unit: MPa	None	Handle downward

Basic Information

Regulator, Pressure Boosting Valve	Regulator	Regulator Type	Standard	Applicable Fluid	Air
Shape	Standard	Adverse Current Function	No

Please check the type/dimensions/specifications of the part 20-AR40-03B-1-A in the Regulator AR10-A to AR40-A series.

Configure

1 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

type
- 20-AR20
- 20-AR25
- 20-AR30
- 20-AR40
- AR10
- AR20
- AR25
- AR30
- AR40
Clear
Operating Environment
- Standard
- Copper-free/Fluorine-free
Clear
Exhaust Mechanism
- Not Provided
  - Non-relief
- Provided
  - Relief
Clear
Supply Side, Connection Type
- Rc
- Others
  - M
- G
- NPT
  - NPT
Clear
Supply Side, Connection Dia.
- M5
  - M5x0.8
- 1/8
- 1/4
- 3/8
- 1/2
- 3/4
Clear
Flow Direction
- (Right)
  - Left→Right
- (Left)
  - Right→Left
Clear
Control Side, Connection Type
- Rc
- Others
  - M
- G
- NPT
  - NPT
Clear
Control Side, Connection Dia.
- M5
  - M5x0.8
- 1/8
- 1/4
- 3/8
- 1/2
- 3/4
Clear
Pressure Gauge
- Not Provided
  - No Pressure Gauge
- With Pressure Gauge
  - Round-shaped pressure gauge (with color zone)
  - Round-shaped pressure gauge (with limit indicator)
  - Round-shaped pressure gauge (without limit indicator)
Clear
Size of Body
10

20

25

30

40
Clear
Accessory
- With Bracket
- With set nut (for panel mount)
- Without optional mounting parts
Clear
Set Pressure
- 0.02 to 0.2 MPa
- 0.05 to 0.4 MPa
- 0.05 to 0.7 MPa
- 0.05 to 0.85 MPa
Clear
Pressure Unit
- Nameplate and pressure gauge units: MPa
- Nameplate and pressure gauge units: psi
- Product name plate and pressure gauge unit: MPa
- Product name plate and pressure gauge unit: psi
Clear
Custom-made Specifications
- 0.4 MPa setting
- 0.85 MPa setting
- 4 to 20 mA output with digital pressure switch
- NPN output with digital pressure switch
- None
- PNP output with digital pressure switch
Clear
Handle Direction / Position
- Handle downward
- Handle upward
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

Same day

31 Day(s) or Less

32 Day(s) or Less

41 Day(s) or Less

51 Day(s) or Less

52 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Similar Part Numbers

Part Number
20-AR20-01BG-Y-A
20-AR20-01G-A
20-AR20-02-A
20-AR40-03BG-A
20-AR40-03BG-N-A
20-AR40-03G-A

Standard Unit Price	Minimum order quantity	Days to Ship	Operating Environment	Exhaust Mechanism	Supply Side, Connection Type	Supply Side, Connection Dia.	Flow Direction	Control Side, Connection Type	Control Side, Connection Dia.	Pressure Gauge	Size of Body	Accessory	Set Pressure	Pressure Unit	Custom-made Specifications	Handle Direction / Position
-	1 Piece(s)	Quote	Copper-free/Fluorine-free	[Provided] Relief	Rc	1/8	[(Right)] Left→Right	Rc	1/8	[With Pressure Gauge] Round-shaped pressure gauge (with limit indicator)	20	With Bracket	0.05 to 0.7 MPa	Product name plate and pressure gauge unit: MPa	None	Handle upward
-	1 Piece(s)	Quote	Copper-free/Fluorine-free	[Provided] Relief	Rc	1/8	[(Right)] Left→Right	Rc	1/8	[With Pressure Gauge] Round-shaped pressure gauge (with limit indicator)	20	Without optional mounting parts	0.05 to 0.7 MPa	Product name plate and pressure gauge unit: MPa	None	Handle downward
-	1 Piece(s)	Quote	Copper-free/Fluorine-free	[Provided] Relief	Rc	1/4	[(Right)] Left→Right	Rc	1/4	[Not Provided] No Pressure Gauge	20	Without optional mounting parts	0.05 to 0.7 MPa	Product name plate and pressure gauge unit: MPa	None	Handle downward
-	1 Piece(s)	Quote	Copper-free/Fluorine-free	[Provided] Relief	Rc	3/8	[(Right)] Left→Right	Rc	3/8	[With Pressure Gauge] Round-shaped pressure gauge (with limit indicator)	40	With Bracket	0.05 to 0.7 MPa	Product name plate and pressure gauge unit: MPa	None	Handle downward
-	1 Piece(s)	Quote	Copper-free/Fluorine-free	[Not Provided] Non-relief	Rc	3/8	[(Right)] Left→Right	Rc	3/8	[With Pressure Gauge] Round-shaped pressure gauge (with limit indicator)	40	With Bracket	0.05 to 0.7 MPa	Product name plate and pressure gauge unit: MPa	None	Handle downward
-	1 Piece(s)	Quote	Copper-free/Fluorine-free	[Provided] Relief	Rc	3/8	[(Right)] Left→Right	Rc	3/8	[With Pressure Gauge] Round-shaped pressure gauge (with limit indicator)	40	Without optional mounting parts	0.05 to 0.7 MPa	Product name plate and pressure gauge unit: MPa	None	Handle downward

All Categories

Categories

Search by Application

Brands

Message from MISUMI

My Favorites

Settings

How can we improve?

Regulator AR10-A to AR40-A (20-AR40-03B-1-A)

(i)Caution

Regulator AR10-A to AR40-A: Detailed Examples

Regulator AR10-A to AR40-A Specifications

Model number notation (standard specifications)

Model number notation (Made-to-order specifications X406)

Specifications

Applicable models

Model number notation (Made-to-order specifications X2068)

Specifications

Applicable models

Standard specification

Options / Part No.

Structural Drawings

Component Parts

Replacement Parts

Regulator AR10-A to AR40-A Dimensions

Basic Information

Configure

Specification/Dimensions

type

Operating Environment

Exhaust Mechanism

Supply Side, Connection Type

Supply Side, Connection Dia.

Flow Direction

Control Side, Connection Type

Control Side, Connection Dia.

Pressure Gauge

Size of Body

Accessory

Set Pressure

Pressure Unit

Custom-made Specifications

Handle Direction / Position

CAD

Days to Ship

Specify Alterations

Similar Part Numbers

Tech Support

Payment Method more

About MISUMI

About this Website

Useful Tools

Customer Service

Social Media

MISUMI Contact 9:00 am – 6:00 pm (Mon – Fri), 9:00 am – 3 pm (Sat)