Stainless Steel One-Touch Pipe Fitting KQ2-G Series, Universal Elbow Union Fitting KQ2V-G (Sealant / No Sealant)

Caution
- Some of the items are scheduled to be discontinued as of end of March in 2023. The manufacturer keep the items produced but they are not available with Misumi.
There are not the replacement items and the plan to resumption of sale. Please check the quotation and order screen for details. - 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]
· Elbow union for confined spaces. The hex-head part on the main body can be tightened using a socket wrench.
Universal Elbow Union Fitting: KQ2V-G (Sealant) Specifications

Oval, circular

Dimensional drawing

Release bushing dimensions
| Applicable Tube Outer diameter (mm) | Connection thread R | Model | H (width across flats) | øD1Note) | Release bushing dimensions | øD2Note) | L1 | L2 | L3 | A* | M | Effective cross-sectional area (mm2) | Minimum hole diameter | Weight g | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| øX (X) | Y | Nylon | Urethane | |||||||||||||
| ø4 | 1/8 | KQ2V04-01GS1 | 8 | 8.2 | 7.7 | 10 | 13.4 | 19.3 | 13.7 | 25.6 | 22.5 | 13.3 | 2.9 | 2.9 | 3 | 13.2 |
| ø6 | 1/8 | KQ2V06-01GS1 | 8 | 10.4 | 9.7 | 12 | 13.4 | 20.5 | 13.7 | 25.6 | 22.5 | 13.3 | 7.5 | 5.9 | 4.5 | 13.5 |
| 1/4 | KQ2V06-02GS1 | 10 | 10.4 | 9.7 | 12 | 15.3 | 19.9 | 17.9 | 30.5 | 25.8 | 13.3 | 7.5 | 5.9 | 4.5 | 24.9 | |
| ø8 | 1/8 | KQ2V08-01GS | 12 | 13.2 | 13 | - | 17.6 | 23.5 | 15.1 | 27.6 | 24.5 | 14.2 | 16 | 11.2 | 6 | 22.6 |
| 1/4 | KQ2V08-02GS | 12 | 13.2 | 13 | - | 17.6 | 23.5 | 18.5 | 31 | 26.3 | 14.2 | 16 | 11.2 | 6 | 29.1 | |
| 3/8 | KQ2V08-03GS | 14 | 13.2 | 13 | - | 20.6 | 23.1 | 19.5 | 35.3 | 30.2 | 14.2 | 16 | 11.2 | 6 | 44.4 | |
| ø10 | 1/4 | KQ2V10-02GS | 14 | 15.9 | 15.6 | - | 20.6 | 25.9 | 19.9 | 34.9 | 30.2 | 15.6 | 27 | 20.3 | 7.5 | 38.1 |
| 3/8 | KQ2V10-03GS | 14 | 15.9 | 15.6 | - | 20.6 | 25.9 | 20.3 | 35.3 | 30.2 | 15.6 | 27 | 20.3 | 7.5 | 45.7 | |
| ø12 | 3/8 | KQ2V12-03GS | 17 | 18.5 | 18.2 | - | 25.2 | 28.5 | 21.4 | 37.6 | 32.5 | 17 | 39 | 30.8 | 9 | 59.6 |
| 1/2 | KQ2V12-04GS | 17 | 18.5 | 18.2 | - | 25.2 | 28.5 | 24.6 | 40.8 | 34.4 | 17 | 39 | 30.8 | 9 | 78.22 | |
- *Reference dimensions after screwing in R thread.
Note) 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, waterNote 1) | |
|---|---|---|
| Operating pressure rangeNote 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) |
| 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 |