Bulkhead Union Fitting KQ2E-G (KQ Compatible) One-Touch Pipe Fitting KQ2 Series

Caution
- The minimum order quantity varies depending on the selected model. Please check the quotation / 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
Quick-connect fitting made by SMC.
[Features]
・ Single-action attachment/release
・ Vacuum -100 kPa can be used
[Applications]
・ Used for wire-to-wire connection between tubes such as panel mounting
Bulkhead Union Fitting: KQ2E-G (KQ Compatible) Specifications

Image figure

Dimensional drawing

Release bushing dimensions
| Applicable tubing outer diameter mm | Model | T (M) | H (width across flats) | Release bushing dimensions | L | Mounting hole | M | Effective cross-sectional area (mm2) | Minimum bore diameter | Weight g | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| øX (X) | Y | Nylon | Urethane | |||||||||
| ø4 | KQ2E04-00G1 | M12 × 1 | 14 | 7.7 | 10 | 27.3 | 13 | 13.3 | 5.6 | 4 | 3 | 22.9 |
| ø6 | KQ2E06-00G1 | M14 × 1 | 17 | 9.7 | 12 | 27.3 | 15 | 13.3 | 13.1 | 10.4 | 4.5 | 28 |
| ø8 | KQ2E08-00G | M16 × 1 | 19 | 13 | - | 29.1 | 17 | 14.2 | 26.1 | 18 | 6 | 34 |
| ø10 | KQ2E10-00G | M20 × 1 | 24 | 15.6 | - | 31.9 | 21 | 15.6 | 41.5 | 29.5 | 7.5 | 64.4 |
| ø12 | KQ2E12-00G | M22 × 1 | 27 | 18.2 | - | 34.7 | 23 | 17 | 58.3 | 46.1 | 9 | 63.8 |
| ø16 | KQ2E16-00G | M28 × 1.5 | 32 | 23.6 | - | 41.9 | 29 | 20.6 | 113 | 67 | 13 | 120.1 |

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 |