Fluoropolymer Pipe Fitting, LQ3 Series, Union Tee 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 Tee reducing: LQ3T-R Metric Size Outline Drawing and Dimensions

Union Tee reducing: LQ3T-R Outline Drawing
| Model | A side (Left) | B side (Center) | C side (Right) | B | E1 | E1' | E2 | E2' | E3 | E3' | F | G | H1 | H2 | H3 | L1 | L1' | L2 | L2' | L3 | L3' | M1 | M2 | M3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Applicable Tubing Outer Diameter | ||||||||||||||||||||||||
| LQ3T11-R1 | ø4 | ø3 | ø4 | 3.5 | 10 | 9 | 10 | 9 | 10 | 9 | 4.8 | 9.5 | 11 | 11 | 11 | 28.5 | 27.5 | 28.5 | 27.5 | 28.5 | 27.5 | 14 | 14 | 14 |
| LQ3T11-R5 | ø4 | ø3 | ||||||||||||||||||||||
| LQ3T21-R1 | ø6 | ø4 | ø6 | 4 | 17 | 16 | 10 | 9 | 17 | 16 | 6 | 12 | 16 | 11 | 16 | 34.5 | 33.5 | 30.5 | 29.5 | 34.5 | 33.5 | 20 | 14 | 20 |
| LQ3T21-R2 | ø3 | ø6 | ||||||||||||||||||||||
| LQ3T21-R5 | ø6 | ø4 | 17 | 16 | 10 | 9 | 16 | 11 | 34.5 | 33.5 | 30.5 | 29.5 | 20 | 14 | ||||||||||
| LQ3T21-R6 | ø6 | ø3 | ||||||||||||||||||||||
| LQ3T31-R1 | ø10 | ø8 | ø10 | 5 | 22.5 | 19.5 | 22.5 | 19.5 | 22.5 | 19.5 | 9 | 18 | 21 | 21 | 21 | 47.5 | 44.5 | 47.5 | 44.5 | 47.5 | 44.5 | 25 | 25 | 25 |
| LQ3T31-R2 | ø6 | ø10 | 17 | 16 | 16 | 38 | 37 | 20 | ||||||||||||||||
| LQ3T31-R5 | ø10 | ø8 | 22.5 | 19.5 | 21 | 21 | 47.5 | 44.5 | 25 | 25 | ||||||||||||||
| LQ3T31-R6 | ø10 | ø6 | 17 | 16 | 16 | 38 | 37 | 20 | ||||||||||||||||
| LQ3T32-R1 | ø8 | ø6 | ø8 | 5 | 22.5 | 19.5 | 17 | 16 | 22.5 | 19.5 | 9 | 18 | 21 | 16 | 21 | 47.5 | 44.5 | 38 | 37 | 47.5 | 44.5 | 25 | 20 | 25 |
| LQ3T32-R5 | ø8 | ø6 | 22.5 | 19.5 | 17 | 16 | 21 | 16 | 47.5 | 44.5 | 38 | 37 | 25 | 20 | ||||||||||
| LQ3T41-R1 | ø12 | ø10 | ø12 | 6 | 24 | 22 | 22.5 | 19.5 | 24 | 22 | 10 | 20 | 24 | 21 | 24 | 52.5 | 50.5 | 48.5 | 45.5 | 52.5 | 50.5 | 29 | 25 | 29 |
| LQ3T41-R5 | ø12 | ø10 | 24 | 22 | 22.5 | 19.5 | 24 | 21 | 52.5 | 50.5 | 48.5 | 45.5 | 29 | 25 | ||||||||||
| LQ3T51-R1 | ø19 | ø12 | ø19 | 7 | 26.5 | 24 | 24 | 22 | 26.5 | 24 | 14 | 28 | 32 | 24 | 32 | 64 | 61.5 | 58.5 | 56.5 | 64 | 61.5 | 37 | 29 | 37 |
| LQ3T51-R5 | ø19 | ø12 | 26.5 | 24 | 24 | 22 | 32 | 24 | 64 | 61.5 | 58.5 | 56.5 | 37 | 29 | ||||||||||
| LQ3T61-R1 | ø25 | ø19 | ø25 | 8 | 30 | 26 | 26.5 | 24 | 30 | 26 | 18 | 36 | 41 | 32 | 41 | 78 | 74 | 70 | 67.5 | 78 | 74 | 49 | 37 | 49 |
| LQ3T61-R5 | ø25 | ø19 | 30 | 26 | 26.5 | 24 | 41 | 32 | 78 | 74 | 70 | 67.5 | 49 | 37 | ||||||||||
- (E1, E1', E2, E2', E3, E3') are the required tube insertion reference dimensions from the nut edge.
- (E1', E2', E3'), L1', L2', L3' are the 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 |