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Quick-Connect Fitting Stainless Steel KQ2-G Series Hex Socket Head Half Union KQ2S (Gasket Seal)

One-touch pipe fitting made by SMC.
[Features]
· One-touch IN/OUT connection.
· Can be used with -100‑kPa vacuum.
[Applications]
· For tight spaces.

(i)Caution

For materials and specification details, please refer to the catalog.
Product images may be representative images. Refer to the catalog for details.

Part Number

Configured Part Number is shown.

Product Specifications
Part Numbers
Catalog

Half Union Fitting With Hex Socket: KQ2S-G (Gasket Seal) Specifications

Image

Name

Release bushing dimensions

Applicable tubing outer diameter mm	Connection thread M	Model	H (width across flats)	øD^Note)	Release bushing dimensions		L₁	L₂	A	M	Effective cross-sectional area (mm²)		Minimum bore diameter	Weight g
Applicable tubing outer diameter mm	Connection thread M	Model	H (width across flats)	øD^Note)	X	Y	L₁	L₂	A	M	Nylon	Urethane	Minimum bore diameter	Weight g
ø4	M5 × 0.8	KQ2S04-M5G1	2.5	8	7.7	10	18.6	15.8	15.6	13.3	4	4	2.5	3
ø6	M5 × 0.8	KQ2S06-M5G1	2.5	10	9.7	12	19.5	17.8	16.5	13.3	4	4	2.5	3.5

Guide/chuck
Can be used with both nylon and urethane. Large holding force. The chuck provides a definite grip, greatly increasing the tube holding force.
Gasket
Thanks to the unique shape that can be used from a low vacuum up to 1 MPa, there is a reliable seal and low resistance when inserting a tube.
Release button (white)
Light removal force. The chuck prevents unnecessary gripping pressure on the tube.
Body/O-ring/stud
Effective for piping in tight spaces. The body and threaded part rotate, allowing for positioning.

Applicable tubing

Tube materials	FEP, PFA, nylon, soft nylon, polyurethane
Tube outer diameter	ø4, ø6, ø8, ø10, ø12, ø16

Specifications

Usable fluids		Air, water^{Note 1)}
Operating pressure range^{Note 2)}		-100 kPa to 1 MPa
Proof pressure (at 23°C)		3 MPa
Ambient and fluid temperature		-5 to 60°C, with water: 0 to 40°C (no freezing)
Thread	Mounting section	JIS B0203 (Tapered pipe thread) JIS B0205 (Metric coarse thread)
Thread	Nut part	JIS B0205 (Metric fine thread)
Seal (thread portion)		With sealant

Note 1) Make sure the surge pressure stays below the maximum operating pressure.
Note 2) It is not completely airtight, so please avoid use in leak testers, etc., where a vacuum is maintained.

Principle Part Materials

Body	SUS303, PBT
Stud	SUS303 (thread portion)
Chuck	SUS304
Guide	SUS304, SUS303, PBT
Release button	POM
Seal, O-ring	NBR
Gasket	SUS304/NBR

: 30; 45; 60

Part Number
10-KQ2S06-M5G1
KQ2S04-M5G1
KQ2S04-M5G1-X17
KQ2S06-M5G1
KQ2S06-M5G1-X17

Standard Unit Price	Minimum order quantity	Days to Ship	Application	Packing, Material of O-Ring	Applicable Tube O.D.1 (φ)	Release button color	Custom-made specifications
MYR 58.84	2 Piece(s)	23 Day(s) or more	Clean circumstance	[Standard (NBR Nitrile Rubber )] NBR	6	White	N/A
MYR 44.00	2 Piece(s)	3 Day(s)	Standard/Mini	[Standard (NBR Nitrile Rubber )] NBR	4	White	N/A
MYR 51.01	10 Piece(s)	13 Day(s) or more	Standard/Mini	[Standard (NBR Nitrile Rubber )] NBR (fluorine coated)	4	Light Blue	Non-grease specification, rubber material・release push color change
MYR 48.30	2 Piece(s)	3 Day(s)	Standard/Mini	[Standard (NBR Nitrile Rubber )] NBR	6	White	N/A
MYR 55.76	10 Piece(s)	13 Day(s) or more	Standard/Mini	[Standard (NBR Nitrile Rubber )] NBR (fluorine coated)	6	Light Blue	Non-grease specification, rubber material・release push color change

Basic Information

Fitting Type	Screw Mount Direction	Applicable Fluid	Water / Air	Screw Mounting, Direction	With hex socket and straight
Body Material	SUS303+PBT	Types	Single-Action / Screw	Thread Material	SUS303
Operating Temperature(°C)	-5::60	Types of connection	M	Connection screw	5×0.8
Number of Connection Tubes(piece)	1	Color	White	Release button shape	Ellipse

Configure

5 Part Numbers

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Configure Remaining Specifications

Completed

Specification/Dimensions

Application
- Standard/Mini
- Clean circumstance
Clear
Packing, Material of O-Ring
- Standard (NBR Nitrile Rubber )
  - NBR
  - NBR (fluorine coated)
Clear
Applicable Tube O.D.1(φ)
4

6
Clear
Release button color
- Light Blue
- White
Clear
Custom-made specifications
- N/A
- Non-grease specification, rubber material・release push color change
Clear
type
- 10-KQ2S
- KQ2S
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

3 Day(s) or Less

13 Day(s) or Less

23 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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Quick-Connect Fitting Stainless Steel KQ2-G Series Hex Socket Head Half Union KQ2S (Gasket Seal)

(i)Caution

Half Union Fitting With Hex Socket: KQ2S-G (Gasket Seal) Specifications

Applicable tubing

Specifications

Principle Part Materials

Basic Information

Configure

Specification/Dimensions

Application

Packing, Material of O-Ring

Applicable Tube O.D.1(φ)

Release button color

Custom-made specifications

type

CAD

Days to Ship

Specify Alterations

Additional Products in this Category

Tech Support

Payment Method

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