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.
- Some of the items are scheduled to be discontinued as of end of March in 2023. The manufacturer keep the items produced but they are not available with Misumi.
There are not the replacement items and the plan to resumption of sale. Please check the quotation and 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.