Union LQ1U Metric Size Fluoropolymer Fittings / Hyper Fittings
Caution
- Refer to the catalog for product specifications.
- Product images may be representative images. Refer to the catalog for details.
Product Description
A union with outstanding flow-through characteristics with minimized liquid pooling.
[Features]
· Quadruple-sealing construction (PAT.) provides a strong sealing effect and highly reliable performance against the leakage of liquids.
· For use at 200°C.
· The seal lock on the nut helps prevent loosening.
· The trapezoidal thread allows for the application of high levels of torque.
· The tube holding section on the nut utilizes a 2-stage system for securely holding tubes in place.
· Strong resistance to tube bending and deformation.
· Simply screw-in as far as the ends of the fitting to tighten the nut. No need for gauge management for positioning.
· The trapezoidal thread prevents the angled insertion of nuts.
Union LQ1U Metric Size Specifications
Common Specifications
| Item | Model | |||||
|---|---|---|---|---|---|---|
| LQ1□10 | LQ1□20 | LQ1□30 | LQ1□40 | LQ1□50 | LQ1□60 | |
| Material | New PFA | |||||
| Maximum operating pressure (at 20°C) | 1.0 MPa | |||||
| Withstand pressure | Refer to the withstand pressure and heat resistance performance curves. | |||||
| Operating temperature | 0 to 200℃ | |||||
Withstand pressure and heat resistance performance
Withstand pressure and heat resistance performance curves
Series
| Series | Size | Pipe connection port diameter | Tube outer diameter | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Metric Size | ||||||||||||||||
| None | 1/8 " | 1/4 " | 3/8 " | 1/2 " | 3/4 " | 1 " | ø3 | ø4 | ø6 | ø8 | ø10 | ø12 | ø19 | ø25 | ||
| Union LQ1U | 1 | ○ | - | - | - | - | - | - | ○ | ○ | - | - | - | - | - | - |
| 2 | ○ | - | - | - | - | - | - | ● | ● | ○ | - | - | - | - | - | |
| 3 | ○ | - | - | - | - | - | - | - | - | ● | ● | ○ | - | - | - | |
| 4 | ○ | - | - | - | - | - | - | - | - | - | - | ● | ○ | - | - | |
| 5 | ○ | - | - | - | - | - | - | - | - | - | - | - | ● | ○ | - | |
| 6 | ○ | - | - | - | - | - | - | - | - | - | - | - | - | ● | ○ | |
External appearance / Dimensional drawing
LQ1U outline drawing
LQ1U dimensional drawing
- (E): Shows the approximate dimension of the inserted tubing from the end of the nut.
- W: Width across flats.
LQ1U Dimensional drawing for size 1
LQ1U Dimensional drawing for sizes 2 to 5
LQ1U dimensional drawing for size 6
| Model | Applicable tube outer diameter | E | H | L | M | W |
|---|---|---|---|---|---|---|
| LQ1U11 | ø4 | 10 | - | 29 | 11.5 | 10 |
| LQ1U12 | ø3 | |||||
| LQ1U21□□ | ø6 | 15 | 14 | 41 | 16.5 | 14 |
| LQ1U22□□ | ø4 | |||||
| LQ1U2C□□ | ø3 | |||||
| LQ1U31□□ | ø10 | 20 | 17 | 54 | 23 | 19 |
| LQ1U32□□ | ø8 | |||||
| LQ1U33□□ | ø6 | |||||
| LQ1U41□□ | ø12 | 24 | 21 | 63 | 28 | 23 |
| LQ1U42□□ | ø10 | |||||
| LQ1U51□□ | ø19 | 29 | 26 | 77 | 39 | 32 |
| LQ1U52□□ | ø12 | |||||
| LQ1U61□□ | ø25 | 39.5 | 36 | 102 | 49 | 46 |
| LQ1U62□□ | ø19 |
Units: mm
Notes For Tubing
1. Use the dedicated tool for connecting tubes.
Refer to "High-Purity Fluoropolymer Fittings / Hyper Fitting LQ1, 2 Series Work Procedure Instructions" for notes regarding tube connections and dedicated tools.
Dedicated Tool Outline Drawing
2. Tighten the nut as far as the end surface of the main body. In order to confirm that it has properly reached the end surface of the main body, tighten by a further 1/8th (approx.) of a turn. You will know that you have sufficiently tightened the nut if it will turn no further past this point. Be sure to also refer to the appropriate tightening torques shown below.
| Body size | Torque (N·m) |
|---|---|
| 2 | 0.3 to 0.4 |
| 3 | 0.8 to 1.0 |
| 4 | 1.0 to 1.2 |
| 5 | 2.5 to 3.0 |
| 6 | 5.5 to 6.0 |
Note: For body size 1, tighten by hand