Flame-Retardancy FR Quick-Connect Fitting KR-W2 Series Double-Ended Tee Union KRT-W2

Caution
- The minimum order quantity varies depending on the selected model. Please check the quotation / order screen for details.
- *See the catalog for detailed specs and materials.
- Product images may be representative images. Refer to the catalog for details.
Product Description
A one-touch fitting used to branch from the female threads on both ends.
[Features]
· Supports FR soft nylon.
· The collet maximizes the retention force. The chuck engages the work piece securely.
· Its special shape ensures a secure seal and minimal resistance when inserting a tube. Can be used in everything from low vacuums to 1 MPa.
· Effective for piping in tight spaces.
· The body and threaded section can be rotated enough to allow for positioning.
[Applications]
· Can be used for branch piping on both sides in a 90° orientation.
Male Branch Tee KRT-W2 Outline Drawing And Dimensions

Male Branch Tee KRT-W2 dimensional drawing
| Applicable tube outer diameter (mm) | Connection thread R | Model | H (width across flats) | Note 1: øD1 | øD2 | L1 | L2 | *A | M | Effective cross-sectional area (mm2) | Weight g | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| FR 2 layer | FR soft nylon | |||||||||||
| 6 | 1/8 | KRT06-01SW2 | 10 | 12.8 | 10 | 20 | 22.1 | 25.5 | 17 | 11.0 | 6.0 | 12 |
| 1/4 | KRT06-02SW2 | 14 | 26.5 | 27.5 | 20 | |||||||
| 3/8 | KRT06-03SW2 | 17 | 27.9 | 29 | 34 | |||||||
| 8 | 1/8 | KRT08-01SW2 | 12 | 15.2 | 12 | 23 | 23.6 | 28 | 18.5 | 26.3 | 18.2 | 14 |
| 1/4 | KRT08-02SW2 | 14 | 28 | 30 | 22 | |||||||
| 3/8 | KRT08-03SW2 | 17 | 29.4 | 31.5 | 36 | |||||||
| 10 | 1/8 | KRT10-01SW2 | 17 | 18.5 | 17 | 26.5 | 26.1 | 32 | 21 | 40.8 | 29.0 | 31 |
| 1/4 | KRT10-02SW2 | 29.5 | 33 | 29 | ||||||||
| 3/8 | KRT10-03SW2 | 30.9 | 34.5 | 39 | ||||||||
| 1/2 | KRT10-04SW2 | 22 | 35.1 | 37 | 66 | |||||||
| 12 | 1/4 | KRT12-02SW2 | 17 | 20.9 | 17 | 28.5 | 30.5 | 35.5 | 22 | 57.2 | 45.2 | 31 |
| 3/8 | KRT12-03SW2 | 31.9 | 37 | 41 | ||||||||
| 1/2 | KRT12-04SW2 | 22 | 36.1 | 39.5 | 68 | |||||||
*Reference dimensions after screwing in R thread.
Note 1: øD indicates the maximum diameter.
KR-W2 Series Overview

Structural diagram
Guide, collet, chuck, seal, sealant, cover (optional), release button (white), tube, body (white), O-ring, stud.
| Usable fluids | Air, water Note 1: | |
|---|---|---|
| Operating pressure range Note 2: | -100 kPa to 1 MPa | |
| Guaranteed pressure resistance | 3 MPa | |
| Ambient temperature and working fluid temperature | -5 to 60°C, 0 to 60°C if water (no freezing) | |
| Thread | Mounting section | JIS B0203 (tapered thread for pipes/tubes) |
| Nut section | JIS B0205 (metric fine thread) | |
| Screw section seal (standard) | Includes sealing agent | |
Specifications
Note 1: Make sure the surge pressure stays below the maximum operating pressure.
Note 2: Do not use with a leak tester or for other forms of vacuum retention as they are not guaranteed for zero leakage.
| Tube materials | FR 2 layer, FR soft nylon |
|---|---|
| Tube outer diameter | ø6, ø8, ø10, ø12 |
Applicable tube.
| Body | C3604, flame-retardant PBT (UL-94 standard V-0 equivalent) |
|---|---|
| Stud | C3604 (threads) |
| Chuck | SUS304 |
| Guide | SUS304, flame-retardant PBT (UL-94 standard V-0 equivalent) |
| Collet | POM |
| Release button | Flame-retardant PBT (UL-94 standard V-0 equivalent) |
| Seal, O-ring | NBR |
| Cover (optional) | Flame-retardant PBT / flame-retardant CR (UL-94 standard V-0 equivalent) |
Main part materials.