Fluoropolymer Pipe Fitting, LQ3 Series, Union Reducing, Metric Size
Brand :
SMC
Caution
- For specifications and details, please refer to the catalog.
- Product images may be representative images. Refer to the catalog for details.
Product Description
Fluoropolymer fittings from SMC Corporation.
[Features]
· Flare-type collet construction.
· Triple-seal construction.
· Ease of installation.
· Excellent flow-through characteristics.
· Excellent heat resistance.
· Can be used at 200°C.
[Applications]
· For joining tubes during piping assembly.
Union Reducing: LQ3U-R Metric Size Outline Drawing and Dimensions
Union Reducing: LQ3U-R Outline Drawing
| Model | A side | B side | E1 | E1' | E2 | E2' | H1 | H2 | L | L' | M1 | M2 | W |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Applicable Tubing Outer Diameter | |||||||||||||
| LQ3U11-R1 | ø4 | ø3 | 10 | 9 | 10 | 9 | 11 | 11 | 46.5 | 44.5 | 14 | 14 | 10 |
| LQ3U21-R1 | ø6 | ø4 | 17 | 16 | 10 | 9 | 16 | 11 | 51 | 48.5 | 20 | 14 | 14 |
| LQ3U21-R2 | ø3 | ||||||||||||
| LQ3U31-R1 | ø10 | ø8 | 22.5 | 19.5 | 22.5 | 19.5 | 21 | 21 | 79 | 73 | 25 | 25 | 18 |
| LQ3U31-R2 | ø6 | 17 | 16 | 16 | 66.5 | 62 | 20 | ||||||
| LQ3U32-R1 | ø8 | ø6 | 22.5 | 19.5 | 17 | 16 | 21 | 16 | 66.5 | 62 | 25 | 20 | 18 |
| LQ3U32-R2 | ø4 | 10 | 9 | 11 | 62 | 58 | 14 | ||||||
| LQ3U41-R1 | ø12 | ø10 | 24 | 22 | 22.5 | 19.5 | 24 | 21 | 82.5 | 77 | 29 | 25 | 22 |
| LQ3U41-R2 | ø8 | ||||||||||||
| LQ3U51-R1 | ø19 | ø12 | 26.5 | 24 | 24 | 22 | 32 | 24 | 95.5 | 91 | 37 | 29 | 30 |
| LQ3U51-R2 | ø10 | 22.5 | 19.5 | 21 | 91 | 85.5 | 25 | ||||||
| LQ3U61-R1 | ø25 | ø19 | 30 | 26 | 26.5 | 24 | 41 | 32 | 112.5 | 105.5 | 49 | 37 | 36 |
| LQ3U61-R2 | ø12 | 24 | 22 | 24 | 106.5 | 100 | 29 | ||||||
(E1, E1', E2, E2'): References dimension for the inserted tubing from the end surface of the nut.
(E1', E2'), L': Nut material PVDF dimensions.
Fluoropolymer Fittings Hyper Fittings / Flare-Type LQ3 Series Common Specifications (Reference)
Construction
LQ3 Series Construction
Specifications
| Material | New PFA | |
|---|---|---|
| Maximum operating pressure (at 20°C) | 1.0 MPa | |
| Proof pressure | Refer to the withstand pressure and heat resistance performance data. | |
| Operating Temperature | Nut material PVDF | 0 to 150°C |
| Nut material PFA | 0 to 200°C | |
Withstand Pressure and Heat Resistance Performance
Withstand Pressure and Heat Resistance Performance Data
Precautions
- Use special tools to connect tubing.
- Tighten the nut until it touches the end surface of the body, and then tighten it an additional 1/8 turn to ensure that the nut has reached the end surface. If the nut will not turn any further, then it means a sufficient tightening has occurred. Refer to the proper tightening torques shown below.
| Body size | Torque (N·m) |
|---|---|
| 1 | 0.7 to 0.9 |
| 2 | 1.6 to 1.8 |
| 3 | 3.2 to 3.5 |
| 4 | 5.0 to 5.3 |
| 5 | 10.0 to 10.5 |
| 6 | 22.5 to 23.0 |
| 7 | 23.0 to 26.5 |