Fluoropolymer Pipe Fitting, LQ3 Series, Female Elbow, Metric Size

Caution
- For specifications and details, please refer to the catalog.
- Product images may be representative images. Refer to the catalog for details.
Product Description
Female elbow with flare-type collet construction.
[Features]
· Triple-seal construction.
· Ease of installation.
· Excellent flow-through characteristics.
· Excellent heat resistance.
· Can be used at 200°C.
Female Elbow LQ3L-F Metric Size Specifications
Common Specifications (Reference)
| Item | Model | |||||||
|---|---|---|---|---|---|---|---|---|
| LQ3□10 | LQ3□20 | LQ3□30 | LQ3□40 | LQ3□50 | LQ3□60 | LQ3□70 | ||
| 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
Series Table
| Series | Size | Port size | Tube Outer Diameter | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Metric Size | ||||||||||||||||||
| None | 1/8 " | 1/4 " | 3/8 " | 1/2 " | 3/4 " | 1 " | 1 1/4 " | ø3 | ø4 | ø6 | ø8 | ø10 | ø12 | ø19 | ø25 | |||
| Elbow LQ3L | Female | 1 | - | ● | - | - | - | - | - | - | ● | ● | - | - | - | - | - | - |
| 2 | - | ● | ● | - | - | - | - | - | - | - | ● | - | - | - | - | - | ||
| 3 | - | ● | ● | ● | - | - | - | - | - | - | - | ● | ● | - | - | - | ||
| 4 | - | - | ● | ● | ● | - | - | - | - | - | - | - | - | ● | - | - | ||
| 5 | - | - | - | ● | ● | ● | - | - | - | - | - | - | - | - | ● | - | ||
| 6 | - | - | - | - | ● | ● | ● | - | - | - | - | - | - | - | - | ● | ||
Dimensional Outline Drawing

LQ3L-F Outline Drawing

LQ3L-F Dimensional Drawing
*(E, E'): Reference dimension for the inserted tubing from the end surface of the nut.
(E'), L1': Nut material PVDF dimensions.
| Model | Applicable Tubing Outer Diameter | Connection thread Rc/NPT | B | C | E | E' | H | L1 | L1' | L2 | M | Y |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LQ3L11-F□ | ø4 | 1/8 " | 3.5 | 4.8 | 10 | 9 | 11 | 28.5 | 27.5 | 19.5 | 14 | 18.5 |
| LQ3L12-F□ | ø3 | |||||||||||
| LQ3L21-F□ | ø6 | 1/8 " | 4 | 6 | 17 | 16 | 16 | 34.5 | 33.5 | 20 | 20 | 18.5 |
| LQ3L22-F□ | 1/4 " | 22 | 21.5 | |||||||||
| LQ3L31-F□ | ø10 | 1/8 " | 5 | 9 | 22.5 | 19.5 | 21 | 47.5 | 44.5 | 23 | 25 | 18.5 |
| LQ3L32-F□ | ø8 | |||||||||||
| LQ3L33-F□ | ø10 | 1/4 " | 24 | 21.5 | ||||||||
| LQ3L34-F□ | ø8 | |||||||||||
| LQ3L35-F□ | ø10 | 3/8 " | 25.5 | 25 | ||||||||
| LQ3L36-F□ | ø8 | |||||||||||
| LQ3L41-F□ | ø12 | 1/4 " | 6 | 10 | 24 | 22 | 24 | 52.5 | 50.5 | 23.5 | 29 | 21.5 |
| LQ3L42-F□ | 3/8 " | 26 | 25 | |||||||||
| LQ3L43-F□ | 1/2 " | 30 | 29.5 | |||||||||
| LQ3L51-F□ | ø19 | 3/8 " | 7 | 14 | 26.5 | 24 | 32 | 64 | 61.5 | 30.5 | 37 | 25 |
| LQ3L52-F□ | 1/2 " | 35.5 | 29.5 | |||||||||
| LQ3L53-F□ | 3/4 " | 37 | 36 | |||||||||
| LQ3L61-F□ | ø25 | 1/2 " | 8 | 18 | 30 | 26 | 41 | 78 | 74 | 41 | 49 | 29.5 |
| LQ3L62-F□ | 3/4 " | 42.5 | 36 | |||||||||
| LQ3L63-F□ | 1 " | 46 | 44.5 |
Unit: mm
Precautions for piping
1. Use special tools to connect tubing.
Refer to the pamphlet "High Purity Fluoropolymer Fittings Hyper Fitting / Flare-Type LQ3 Series Fitting Procedure" for connecting tubing and special tools.

Special Tool Outline Drawing and Connection Image
2. 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 |