One-Touch Fitting KQ2 Series Reducer Elbow KQ2L

Caution
- The minimum order quantity varies depending on the selected model. Please check the quotation / order screen for details.
- See the catalog for details on materials and specifications.
- Product images may be representative images. Refer to the catalog for details.
Product Description
A one-touch fitting by SMC.
[Features]
· Improved tube insertion/removal.
· Compact and lightweight.
· Can be used with a vacuum pressure of -100 kPa or more.
· Body shape: Total of 51 models.
· Thread part material / surface treatment (with/without): 2 types.
· Available surface treatment: brass (no plating), brass + electroless nickel plating.
[Applications]
· Use to change the tube direction from one-touch fittings by 90 degrees while reducing the size (diameter) of the tube.
[See here for catalog]
· Applicable tube outer diameter (metric), Release button: oval (pp. 12) circle (pp. 109)
· Applicable tube outer diameter (inches), Release button: oval (pp. 36) circle (pp. 141)
Reducer Elbow KQ2L Outline Drawing And Dimensions

Reducer Elbow KQ2L outline drawing
(Units: mm)
| Applicable tube outer diameter mm | Applicable tube fitting size ød | Model | øD1 | Release Button Dimensions | øD2 | L1 | L2 | A | M | Effective area (mm2) | Minimum hole diameter | Weight g | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| X | Y | Nylon | Urethane | |||||||||||
| ø3.2 | ø4 | KQ2L23-04A1 | 7.1 | 6.7 | 9.5 | 6.4 | 14.5 | 23.9 | 14.1 | 13.3 | 3 | 2.5 | 2.5 | 1.1 |
| ø6 | KQ2L23-06A1 | 7.1 | 6.7 | 9.5 | 6.4 | 14.5 | 24.1 | 14.3 | 13.3 | 3 | 2.5 | 2.5 | 1.3 | |
| ø4 | ø6 | KQ2L04-06A1 | 8.2 | 7.7 | 10 | 7.2 | 14.8 | 24.6 | 15.4 | 13.3 | 4.2 | 4.2 | 3 | 1.5 |
| ø8 | KQ2L04-08A1 | 8.2 | 7.7 | 10 | 7.2 | 14.8 | 29.5 | 19.4 | 13.3 | 4.2 | 4.2 | 3 | 1.8 | |
| ø6 | ø8 | KQ2L06-08A1 | 10.4 | 9.7 | 12 | 9 | 15.5 | 24.2 | 15.2 | 13.3 | 11.4 | 9 | 4.5 | 2.1 |
| ø10 | KQ2L06-10A1 | 10.4 | 9.7 | 12 | 9 | 15.5 | 31.6 | 21.2 | 13.3 | 11.4 | 9 | 4.5 | 2.7 | |
One-Touch Fitting KQ2 Series (Metric Size) Common Specifications (Reference)
Structure

One-Touch Fitting KQ2 Series (Metric Size) Structural Drawing
Applicable Tubing
| Tube materials | FEP, PFA, nylon, soft nylon, polyurethane |
|---|---|
| Tube outer diameter | ø3.2, ø4, ø6 |
Specifications
| Usable fluids | Air, water Note 1: | |
|---|---|---|
| Operating pressure range Note 2: | -100 kPa to 1 MPa | |
| Guaranteed proof pressure (at 23°C) | 3 MPa | |
| Ambient temperature and fluid temperature | -5 to 60°C, For water: 0 to 40°C (no freezing) | |
| Thread | Mounting section | JIS B0203 (tapered pipe thread) JIS B0205 (metric coarse thread) |
| Nut section | JIS B0205 (metric fine thread) | |
| Thread part seal | Sealing agent included | |
Note 1: The surge pressure must be under the maximum operating pressure.
Note 2: Do not use the fittings with a leak tester or for vacuum retention because they are not guaranteed for zero leakage.
Main Component Materials
| Body | C3604, PBT, PP, SUS303 |
|---|---|
| Stud | C3604 (thread part), SUS303 (thread part) |
| Chuck | SUS304 |
| Guide | SUS304 |
| Release button | POM |
| Seal, O-ring | NBR |
| Gasket | SUS304, NBR |