Quick-Connect Fitting Stainless Steel KQ2-G Series Long Elbow Union KQ2W (With/Without Sealant)

Brand :

SMC

Caution

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

Product Description

SMC One-Touch fitting.
[Features]
· One-touch IN/OUT connection.
· Can be used with -100‑kPa vacuum.
[Applications]
· Generally used in the same way as an elbow union.
· Used to prevent fittings from interfering with one another in a three-dimensional positioning.

Long Elbow Union Fitting: KQ2W-G (Sealant) Specifications

Oval, circular

Dimensional drawing

Release bushing dimensions

Applicable tubing outer diameter mm	Connection thread R	Model	H (width across flats)	øD₁^{Note 1)}	Release bushing dimensions		øD₂	L₁	L₂	A^*	M	Effective cross-sectional area (mm²)		Minimum bore diameter	Weight g	With gusset
Applicable tubing outer diameter mm	Connection thread R	Model	H (width across flats)	øD₁^{Note 1)}	øX (X)	Y	øD₂	L₁	L₂	A^*	M	Nylon	Urethane	Minimum bore diameter	Weight g	With gusset
ø4	1/8	KQ2W04-01GS1	10	8.2	7.7	10	10	14.8	29.9	30.9	13.3	4	4	3	11	●
ø4	1/4	KQ2W04-02GS1	14	8.2	7.7	10	10	14.8	33.3	32.7	13.3	4	4	3	27.5	●
ø6	1/8	KQ2W06-01GS1	10	10.4	9.7	12	10	15.5	31	33.1	13.3	10.9	8.6	4.5	11.4	-
	1/4	KQ2W06-02GS1	14	10.4	9.7	12	10	15.5	34.4	34.9	13.3	10.9	8.6	4.5	28	-
	3/8	KQ2W06-03GS1	17	10.4	9.7	12	10	15.5	35.7	35.8	13.3	10.9	8.6	4.5	47.4	-
ø8	1/8	KQ2W08-01GS	10	13.2	13	-	10	16.4	32.4	35.9	14.2	10.9	10.9	4.5	12.2	●
	1/8	KQ2W08-01GQS	12	13.2	13	-	12	17.2	42.4	45.9	14.2	20.5	14.2	6	23.7	●
	1/4	KQ2W08-02GS	14	13.2	13	-	12	17.2	39.1	41	14.2	20.5	14.2	6	40	●
	3/8	KQ2W08-03GS	17	13.2	13	-	12	17.2	39.2	40.7	14.2	20.5	14.2	6	47	●
ø10	1/4	KQ2W10-02GS	17	15.9	15.6	-	17	19.3	52.9	56.2	15.6	33.5	23.8	7.5	59	●
	3/8	KQ2W10-03GS	17	15.9	15.6	-	17	19.3	48.5	51.4	15.6	33.5	23.8	7.5	51.3	●
	1/2	KQ2W10-04GS	22	15.9	15.6	-	17	19.3	52.5	54.1	15.6	33.5	23.8	7.5	92	●
ø12	1/4	KQ2W12-02GS	17	18.5	18.2	-	17	21.5	54.2	58.8	17	47.7	37.7	9	60.7	●
	3/8	KQ2W12-03GS	17	18.5	18.2	-	17	21.5	49.8	54	17	47.7	37.7	9	53.2	●
	1/2	KQ2W12-04GS	22	18.5	18.2	-	17	21.5	53.8	56.7	17	47.7	37.7	9	93.9	●

*Reference dimensions of R thread after installation

Note 1) øD₁represents maximum diameter.

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.
Seal
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 bushing (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, For water: 0 to 40°C (no freezing)
Thread	Mounting section	JIS B0203 (taper thread for piping) 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