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Bushing Type Check Valve With One-Touch Fitting AKH/AKB Series

On Sale Till 31/05/2024

SMC

Quick exhaust valve / shuttle valve.
[Features]
· 3 types for use in different operating conditions.
· With one-touch fitting.

(i)Caution

Refer to the catalog for product specifications.
Product images may be representative images. Refer to the catalog for details.

Part Number

Configured Part Number is shown.

Product Specifications
Part Numbers
Catalog

Bushing Type Check Valve AKH/AKB Series Specifications

Straight Type AKH dimensional outline drawing

Metric Size

(Unit: mm)

Applicable tube outer diameter	Model	øD	L	M	Sonic conductance dm³/(s-bar)	Critical pressure ratio	Weight g
4	AKH04-00	9.3	33.5	12.7	0.56	0.35	3
6	AKH06-00	11.6	37.1	13.5	1.3	0.35	5
8	AKH08-00	15.2	53.3	18.5	2.8	0.5	10
10	AKH10-00	18.5	63.6	21	4.8		17
12	AKH12-00	21.7	70.2	22	6.8		25

Inch Size

(Unit: mm)

Applicable tube outer diameter	Model	øD	L	M	Sonic conductance dm³/(s-bar)	Critical pressure ratio	Weight g
5/32	AKH03-00	9.3	33.5	12.7	0.56	0.35	3
1/4	AKH07-00	12	39	13.6	1.3	0.35	6
5/16	AKH09-00	15.2	53.3	18.5	2.8	0.5	10
3/8	AKH11-00	18.5	63.6	21	4.8		17
1/2	AKH13-00	21.7	70.2	22	6.8		24

Specifications

Usable fluids	Air
Guaranteed pressure resistance	1.5 MPa
Operating pressure range	-100 kPa to 1 MPa
Cracking pressure	^{Note 1:} 0.005 MPa
Ambient temperature and working fluid temperature	-5 to 60°C (no freezing)
^{Note 2:} Applicable tube material	Nylon, soft nylon, polyurethane

Note 1: Not the pressure at which the valve fully opens.
Note 2: Take note of the maximum operating pressure when using soft nylon or polyurethane.

Bushing Type Check Valve With One-Touch Fitting Example Application

Preventing backflow to the source of the vacuum (simple vacuum retention)

Preventing backflow of the internal tank pressure

Fall prevention

*The product specifications allow for a certain amount of leakage. Note that the product is not suitable for pressure retention over long periods.

Design Notes And Selection

1. The valve may not open fully and may oscillate if the IN side on the check valve is throttled, even if used within the specification range detailed.
2. The cracking pressure is the pressure at which the valve begins to open, not the pressure at which it fully opens.
3. The check valve is structured so that the differential pressure generated when switching between the solenoid valve for the primary pressure (IN) and secondary pressure (OUT) causes it to close. Note that if the primary pressure (IN) drops gently and the differential pressure becomes less than the minimum operating pressure or cracking pressure, the secondary pressure (OUT) may also drop with the check valve not fully closing.

: 30; 45; 60

Part Number
AKB01A-01S
AKB01A-N01S
AKB01B-01S
AKB01B-N01S
AKB02A-02S
AKB02A-N02S
AKB02B-02S
AKB02B-N02S
AKB03A-03S
AKB03A-N03S
AKB03B-03S
AKB03B-N03S
AKB04A-04S
AKB04A-N04S
AKB04B-04S
AKB04B-N04S
AKH03-00
AKH03A-N01S
AKH03A-U10/32
AKH03B-N01S
AKH04-00
AKH04A-01S
AKH04A-M5
AKH04B-01S
AKH04B-M5
AKH06-00
AKH06A-01S
AKH06A-02S
AKH06A-M5
AKH06B-01S
AKH06B-02S
AKH06B-M5
AKH07-00
AKH07A-N01S
AKH07A-N02S
AKH07A-U10/32
AKH07B-N01S
AKH07B-N02S
AKH07B-U10/32
AKH08-00
AKH08A-01S
AKH08A-02S
AKH08A-03S
AKH08B-01S
AKH08B-02S
AKH08B-03S
AKH09-00
AKH09A-N01S
AKH09B-N01S
AKH09B-N02S
AKH10-00
AKH10A-02S
AKH10A-03S
AKH10A-04S
AKH10B-02S
AKH10B-03S
AKH10B-04S
AKH11-00
AKH11A-N02S
AKH11A-N03S

Standard Unit Price	Minimum order quantity	Days to Ship	Material	Input Side, Port Type P	Output Side, Port Type A	Effective Sectional Area【classification】 (㎜2)	Applicable Tube O.D. (mm)	Applicable Tube O.D. (inch)	Sonic Conductance [dm3/(s/bar)]	Free Flow Direction of Check Valve	Connection Dia.
SGD 22.63 SGD 11.54	1 Piece(s)	Same day	[Brass] Brass + Electroless Nickel Plating	Male thread	Female Thread	~10	-	-	1.3	Male Thread to Female Thread	Rc 1/8
SGD 22.63 SGD 18.10	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	Female Thread	~10	-	-	1.3	Male Thread to Female Thread	NPT 1/8
SGD 22.63 SGD 18.10	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	Female Thread	~10	-	-	1.3	Female Thread to Male Thread	Rc 1/8
SGD 22.63 SGD 18.10	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	Female Thread	~10	-	-	1.3	Female Thread to Male Thread	NPT 1/8
SGD 29.40 SGD 23.52	1 Piece(s)	31 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	Female Thread	~15	-	-	2.8	Male Thread to Female Thread	Rc 1/4
SGD 29.40 SGD 23.52	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	Female Thread	~15	-	-	2.8	Male Thread to Female Thread	NPT 1/4
SGD 29.40 SGD 23.52	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	Female Thread	~15	-	-	2.8	Female Thread to Male Thread	Rc 1/4
SGD 29.40 SGD 23.52	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	Female Thread	~15	-	-	2.8	Female Thread to Male Thread	NPT 1/4
SGD 44.33 SGD 35.46	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	Female Thread	~30	-	-	4.8	Male Thread to Female Thread	Rc 3/8
SGD 44.33 SGD 35.46	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	Female Thread	~30	-	-	4.8	Male Thread to Female Thread	NPT 3/8
SGD 44.33 SGD 35.46	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	Female Thread	~30	-	-	4.8	Female Thread to Male Thread	Rc 3/8
SGD 44.33 SGD 35.46	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	Female Thread	~30	-	-	4.8	Female Thread to Male Thread	NPT 3/8
SGD 61.25 SGD 31.24	1 Piece(s)	Same day	[Brass] Brass + Electroless Nickel Plating	Male thread	Female Thread	~40	-	-	6.8	Male Thread to Female Thread	Rc 1/2
SGD 70.00 SGD 56.00	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	Female Thread	~40	-	-	6.8	Male Thread to Female Thread	NPT 1/2
SGD 61.25 SGD 49.00	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	Female Thread	~40	-	-	6.8	Female Thread to Male Thread	Rc 1/2
SGD 70.00 SGD 56.00	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	Female Thread	~40	-	-	6.8	Female Thread to Male Thread	NPT 1/2
SGD 16.92 SGD 8.63	1 Piece(s)	Same day	PBT	One-Touch Couplings	One-Touch Couplings	5 or Less	-	5/32	0.56	-	-
SGD 19.72 SGD 15.78	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	5 or Less	-	5/32	0.56	Male Thread to One-Touch Fitting	NPT 1/8
SGD 18.43	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	5 or Less	-	5/32	0.56	Male Thread to One-Touch Fitting	10-32 UNF
SGD 19.72 SGD 15.78	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	5 or Less	-	5/32	0.56	One-Touch Fitting to Male Thread	NPT 1/8
SGD 16.92 SGD 10.15	1 Piece(s)	Same day	PBT	One-Touch Couplings	One-Touch Couplings	5 or Less	4	-	0.56	-	-
SGD 19.72 SGD 15.78	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	5 or Less	4	-	0.56	Male Thread to One-Touch Fitting	R 1/8
SGD 18.43 SGD 10.51	1 Piece(s)	Same day	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	5 or Less	4	-	0.56	Male Thread to One-Touch Fitting	M5
SGD 19.72 SGD 15.78	1 Piece(s)	Quote	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	5 or Less	4	-	0.56	One-Touch Fitting to Male Thread	R 1/8
SGD 18.43 SGD 14.74	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	5 or Less	4	-	0.56	One-Touch Fitting to Male Thread	M5
SGD 17.50 SGD 10.50	1 Piece(s)	Same day	PBT	One-Touch Couplings	One-Touch Couplings	~10	6	-	1.3	-	-
SGD 20.88 SGD 16.70	1 Piece(s)	31 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~10	6	-	1.3	Male Thread to One-Touch Fitting	R 1/8
SGD 22.17 SGD 17.74	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~10	6	-	1.3	Male Thread to One-Touch Fitting	R 1/4
SGD 20.65 SGD 16.52	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	5 or Less	6	-	0.56	Male Thread to One-Touch Fitting	M5
SGD 20.88 SGD 16.70	1 Piece(s)	Quote	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~10	6	-	1.3	One-Touch Fitting to Male Thread	R 1/8
SGD 22.17 SGD 17.74	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~10	6	-	1.3	One-Touch Fitting to Male Thread	R 1/4
SGD 20.65 SGD 16.52	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	5 or Less	6	-	0.56	One-Touch Fitting to Male Thread	M5
SGD 20.65 SGD 16.52	1 Piece(s)	31 Day(s)	PBT	One-Touch Couplings	One-Touch Couplings	~10	-	1/4	1.3	-	-
SGD 20.88 SGD 16.70	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~10	-	1/4	1.3	Male Thread to One-Touch Fitting	NPT 1/8
SGD 22.17 SGD 17.74	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~10	-	1/4	1.3	Male Thread to One-Touch Fitting	NPT 1/4
SGD 20.65 SGD 16.52	1 Piece(s)	Quote	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	5 or Less	-	1/4	0.56	Male Thread to One-Touch Fitting	10-32 UNF
SGD 20.88 SGD 16.70	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~10	-	1/4	1.3	One-Touch Fitting to Male Thread	NPT 1/8
SGD 22.17 SGD 17.74	1 Piece(s)	31 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~10	-	1/4	1.3	One-Touch Fitting to Male Thread	NPT 1/4
SGD 20.65	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	5 or Less	-	1/4	0.56	One-Touch Fitting to Male Thread	10-32 UNF
SGD 27.07 SGD 13.81	1 Piece(s)	Same day	PBT	One-Touch Couplings	One-Touch Couplings	~15	8	-	2.8	-	-
SGD 23.33 SGD 18.66	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~10	8	-	1.3	Male Thread to One-Touch Fitting	R 1/8
SGD 28.93 SGD 23.14	1 Piece(s)	31 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~15	8	-	2.8	Male Thread to One-Touch Fitting	R 1/4
SGD 39.32 SGD 31.46	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~15	8	-	2.8	Male Thread to One-Touch Fitting	R 3/8
SGD 23.33 SGD 18.66	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~10	8	-	1.3	One-Touch Fitting to Male Thread	R 1/8
SGD 28.93 SGD 23.14	1 Piece(s)	31 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~15	8	-	2.8	One-Touch Fitting to Male Thread	R 1/4
SGD 39.32 SGD 31.46	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~15	8	-	2.8	One-Touch Fitting to Male Thread	R 3/8
SGD 39.08 SGD 31.26	1 Piece(s)	46 Day(s)	PBT	One-Touch Couplings	One-Touch Couplings	~15	-	5/16	2.8	-	-
SGD 23.33 SGD 18.66	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~10	-	5/16	1.3	Male Thread to One-Touch Fitting	NPT 1/8
SGD 23.33 SGD 18.66	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~10	-	5/16	1.3	One-Touch Fitting to Male Thread	NPT 1/8
SGD 28.93 SGD 23.14	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~15	-	5/16	2.8	One-Touch Fitting to Male Thread	NPT 1/4
SGD 40.60 SGD 20.71	1 Piece(s)	Same day	PBT	One-Touch Couplings	One-Touch Couplings	~30	10	-	4.8	-	-
SGD 51.68 SGD 41.34	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~30	10	-	4.8	Male Thread to One-Touch Fitting	R 1/4
SGD 51.68 SGD 41.34	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~30	10	-	4.8	Male Thread to One-Touch Fitting	R 3/8
SGD 54.13 SGD 43.30	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~30	10	-	4.8	Male Thread to One-Touch Fitting	R1/2
SGD 51.68 SGD 41.34	1 Piece(s)	31 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~30	10	-	4.8	One-Touch Fitting to Male Thread	R 1/4
SGD 51.68 SGD 41.34	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~30	10	-	4.8	One-Touch Fitting to Male Thread	R 3/8
SGD 54.13 SGD 43.30	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~30	10	-	4.8	One-Touch Fitting to Male Thread	R1/2
SGD 41.53 SGD 24.92	1 Piece(s)	Same day	PBT	One-Touch Couplings	One-Touch Couplings	~30	-	3/8	4.8	-	-
SGD 51.68 SGD 41.34	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~30	-	3/8	4.8	Male Thread to One-Touch Fitting	NPT 1/4
SGD 51.68 SGD 41.34	1 Piece(s)	46 Day(s)	[Brass] Brass + Electroless Nickel Plating	Male thread	One-Touch Couplings	~30	-	3/8	4.8	Male Thread to One-Touch Fitting	NPT 3/8

Basic Information

Type	Standard	Main Body Shape	Straight	Seal Material	Nitrile Rubber

Configure

70 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Material
- Brass
  - Brass + Electroless Nickel Plating
- PBT
Clear
Input Side, Port Type P
- Male thread
- One-Touch Couplings
Clear
Output Side, Port Type A
- Female Thread
- One-Touch Couplings
Clear
Effective Sectional Area【classification】(㎜2)
5 or Less

~10

~15

~30

~40
Clear
Applicable Tube O.D. (mm)
- 4
- 6
- 8
- 10
- 12
Clear
Applicable Tube O.D. (inch)
- 1/2
- 1/4
- 3/8
- 5/16
- 5/32
Clear
Sonic Conductance [dm3/(s/bar)]
0.56

1.3

2.8

4.8

6.8
Clear
Free Flow Direction of Check Valve
- Female Thread to Male Thread
- Male Thread to Female Thread
- Male Thread to One-Touch Fitting
- One-Touch Fitting to Male Thread
Clear
Connection Dia.
NPT 1/2

R1/2

Rc 1/2

NPT 1/4

R 1/4

Rc 1/4

NPT 1/8

R 1/8

Rc 1/8

NPT 3/8

R 3/8

Rc 3/8

M5

10-32 UNF
Clear
type
- AKB□
- AKH□
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

Same day

31 Day(s) or Less

46 Day(s) or Less

67 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 .

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Bushing Type Check Valve With One-Touch Fitting AKH/AKB Series

(i)Caution

Bushing Type Check Valve AKH/AKB Series Specifications

Metric Size

Inch Size

Specifications

Bushing Type Check Valve With One-Touch Fitting Example Application

Design Notes And Selection

Basic Information

Configure

Specification/Dimensions

Material

Input Side, Port Type P

Output Side, Port Type A

Effective Sectional Area【classification】(㎜2)

Applicable Tube O.D. (mm)

Applicable Tube O.D. (inch)

Sonic Conductance [dm3/(s/bar)]

Free Flow Direction of Check Valve

Connection Dia.

type

CAD

Days to Ship

Specify Alterations

Tech Support

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