Quick-Connect Fitting, KQ2 Series, Double Branch, KQ2UD (With Sealant / Without Sealant)

Caution
- The minimum order quantity varies depending on the selected model. Please check the quotation / order screen for details.
- 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 double branch that drastically cuts piping work-hours with the gasket-seal method.
[Features]
・ Improved tube insertion and removal
・ Compact and weight reduced
·Can be used in vacuum to -100 kPa
·The chamfered part of the female thread is the sheet surface, and a gasket with NBR laminated on both sides of the stainless steel plate is used as the seal
·Structure that can be sealed regardless of the difference in diameter due to different types of female threads, variation due to tolerance, size of chamfer, etc.
·All normal chamfered female threads can be used
[Applications]
·Used for 4-branch piping in the same direction from the female thread
* Please refer to p. 131 for the made-to-order / clean series.
Double Branch "Y KQ2UD (Sealant) Specifications

KQ2UD (Sealant) External Appearance

KQ2UD (Sealant) Dimensional Drawing
(Unit: mm)
| Applicable tubing outer diameter mm | Connection thread R | Model | H (Hex size) | øD1Note) | øD2 | L | I | A* | M | P | Q | øO | øN | Effective Area mm2 | Minimum Port Size | Weight g | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nylon | Urethane | ||||||||||||||||
| ø4 | 1/8 | KQ2UD04-01□S | 12 | 8.2 | 10.4 | 36.7 | 16.6 | 33.6 | 13.3 | 8.2 | 6.8 | 6 | 3.2 | 4.2 | 4.2 | 5.4 | 11.7 |
| 1/4 | KQ2UD04-02□S | 14 | 8.2 | 10.4 | 41.1 | 16.6 | 36.4 | 13.3 | 8.2 | 6.8 | 6 | 3.2 | 4.2 | 4.2 | 5.4 | 20.6 | |
| ø6 | 1/8 | KQ2UD06-01□S | 14 | 10.4 | 13.2 | 39.5 | 21 | 36.4 | 13.3 | 10.4 | 8.2 | 6 | 3.2 | 13.4 | 10.6 | 6 | 16.4 |
| 1/4 | KQ2UD06-02□S | 14 | 10.4 | 13.2 | 43.9 | 21 | 39.2 | 13.3 | 10.4 | 8.2 | 6 | 3.2 | 13.4 | 10.6 | 7.3 | 21.6 | |
*Reference dimensions after installation of R thread
□ Symbol: A = brass, N = brass + electroless nickel plating
Note) øD1represents maximum diameter.
Applicable Tubing
| Tubing material | FEP, PFA, nylon, soft nylon, polyurethane |
|---|---|
| Tubing outer diameter | ø3.2, ø4, ø6 |
Specifications
| Fluid | Air, waterNote 1) | |
|---|---|---|
| Operating pressure rangeNote 2) | -100 kPa to 1 MPa | |
| Proof pressure (at 23°C) | 3 MPa | |
| Ambient temperature and fluid temperature | -5 to 60°C, Water: 0 to 40°C (No freezing) | |
| Thread | Mounting section | JIS B0203 (Taper thread for piping) JIS B0205 (Metric coarse thread) |
| Nut section | JIS B0205 (Metric fine thread) | |
| Seal on the threads | With sealant | |
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.
Principal Parts Materials
| Body | C3604, PBT, PP, SUS 303 |
|---|---|
| Stud | C3604 (thread part), SUS 303 (thread part) |
| Chuck | SUS 304 |
| Guide | SUS 304 |
| Release button | POM |
| Seal, O-ring | NBR |
| Gasket | SUS 304/NBR |