Flame-Retardancy FR Quick-Connect Fitting KR-W2 Series Long Straight Elbow KRW-W2

Caution
- *See the catalog for detailed specs and materials.
- Product images may be representative images. Refer to the catalog for details.
Product Description
A flame retardant (UL-94 standard V-0 equivalent) one-touch fitting.
[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 work in tight spaces.
· The body and threaded section can be rotated enough to allow for positioning.
[Applications]
· Can be used to change tube retrieval orientation 90° from one-touch fittings.
Extended Plug-In Elbow KRW-W2 Outline Drawing And Dimensions

Extended Plug-In Elbow KRW-W2 dimensional drawing
| Applicable tube outer diameter (mm) | Applicable pipe fitting size ød | Model | Note: øD1 | øD2 | L1 | L2 | A | M | Effective cross-sectional area (mm2) | Weight g | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| FR 2 layer | FR soft nylon | ||||||||||
| 6 | 6 | KRW06-99W2 | 12.8 | 10 | 20 | 41.5 | 31 | 17 | 9.0 | 4.2 | 4 |
| 8 | 8 | KRW08-99W2 | 15.2 | 10 | 22.5 | 48 | 37 | 18.5 | 21.6 | 14.9 | 6 |
| 10 | 10 | KRW10-99W2 | 18.5 | 14 | 25.5 | 55 | 43.5 | 21 | 35.2 | 25.0 | 9 |
| 12 | 12 | KRW12-99W2 | 20.9 | 16 | 27 | 59.5 | 48 | 22 | 50.2 | 39.7 | 13 |
Note: 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.