Color Cap KQ2 Series, One-Touch Fitting

Caution
- Please refer to the catalog for detailed specifications and materials.
- Product images may be representative images. Refer to the catalog for details.
Product Description
One-touch fitting by SMC.
[Features]
· Improved tube insertion and removal.
· Compact and lightweight.
[Applications]
Mount onto the release button and use different colors for piping according to applications.
Metric-Size One-Touch Fitting KQ2 Series Color Cap Specifications

Color Cap External Appearance

Color Cap Dimensional Drawing
| Applicable tubing outer diameter mm | Model | øD1 | øD2 | L | Weight g | Note |
|---|---|---|---|---|---|---|
| ø8 | KQ2C-08□A | 12.8 | 9.2 | 2.6 | 0.1 | For product models from before change in release button outer diameter size |
| ø10 | KQ2C-10□A | 15.2 | 11.2 | 2.7 | 0.1 | |
| ø12 | KQ2C-12□A | 17.6 | 13.2 | 2.7 | 0.1 | |
| ø16 | KQ2C-16□A | 22.4 | 17.2 | 3.2 | 0.2 |
Unit: mm
Color code (□ symbol)
- B (black)
- R (red)
- YR (orange)
- BR (brown)
- Y (yellow)
- G (green)
- CB (sky blue)
- GR (gray)
- W (white)
- BU (blue)
Notes when Ordering Color Caps
In order to improve operability, the outside diameter of the release button has been enlarged for the new KQ2 series.
Therefore, the usable color caps will differ between pre-change and post-change products. Please be aware of this.
Please contact SMC if anything is unclear.
Applicable Sizes and Models
| - | Applicable Tubing Outer Diameter | Model |
|---|---|---|
| Metric Size | ø8, ø10, ø12, ø16 | All models* |
| Inch Size | ø1/4 ", ø3/8 ", ø1/2 " |
*Excluding models without release buttons
How to Identify Release Buttons Before and After Change

Release button before change: no protruding mark

Release button after change: protruding mark
The release button for both the fitting/KQ2 and color cap/KQ2C after the change can be identified by the protruding mark on the left side of the SMC logo, and the release button before the change has no protruding mark.
The same identification method is used for metric size and inch size.
* Along with the change of the release button, the model of the color cap/KQ2C is changed from KQ2C-A to KQ2C-B.