Quick-Connect Fitting Stainless Steel KQ2-G Series Hex Socket Head Half Union KQ2S (Gasket Seal)
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
One-touch pipe fitting made by SMC.
[Features]
· One-touch IN/OUT connection.
· Can be used with -100‑kPa vacuum.
[Applications]
· For tight spaces.
Half Union Fitting With Hex Socket: KQ2S-G (Gasket Seal) Specifications
Image
Name
Release bushing dimensions
| Applicable tubing outer diameter mm | Connection thread M | Model | H (width across flats) | øDNote) | Release bushing dimensions | L1 | L2 | A | M | Effective cross-sectional area (mm2) | Minimum bore diameter | Weight g | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| X | Y | Nylon | Urethane | |||||||||||
| ø4 | M5 × 0.8 | KQ2S04-M5G1 | 2.5 | 8 | 7.7 | 10 | 18.6 | 15.8 | 15.6 | 13.3 | 4 | 4 | 2.5 | 3 |
| ø6 | M5 × 0.8 | KQ2S06-M5G1 | 2.5 | 10 | 9.7 | 12 | 19.5 | 17.8 | 16.5 | 13.3 | 4 | 4 | 2.5 | 3.5 |
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.
Gasket
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 button (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, with water: 0 to 40°C (no freezing) | |
| Thread | Mounting section | JIS B0203 (Tapered pipe thread) 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 |