Fluoropolymer Pipe Fitting, LQ1 Series, Union Reducing, Inch Size
Caution
- Refer to the catalog for product specifications.
- Product images may be representative images. Refer to the catalog for details.
Product Description
A reducing-type fluoropolymer union fitting for use at temperatures of up to 200°C.
[Features]
· Unique quadruple-sealing construction (PAT.) provides a strong sealing effect and highly reliable performance against the leakage of liquids.
· Offers outstanding flow-through characteristics with minimized liquid pooling.
· 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, Reducing Type LQ1U-R Inch Size Specifications
Common Specifications (reference)
| Item | Model | |||||
|---|---|---|---|---|---|---|
| LQ1□10 | LQ1□20 | LQ1□30 | LQ1□40 | LQ1□50 | LQ1□60 | |
| Material | New PFA Note: | |||||
| 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℃ | |||||
Note: For made-to-order products, the main body of the fitting is made of PTFE.
Withstand pressure and heat resistance performance
Withstand pressure and heat resistance performance curves
Outline/dimensions
Union, Reducing Type Outline Drawing
Union, Reducing Type dimensional drawing
Union, Reducing Type dimensional drawing for sizes 3 to 5
Union, Reducing Type dimensional drawing for size 6
| Model | A side | B side | E1 | E2 | H1 | H2 | L | M1 | M2 | W |
|---|---|---|---|---|---|---|---|---|---|---|
| Applicable tube outer diameter | ||||||||||
| LQ1U4A-R2 | 1/2 " | 1/4 " | 24 | 15 | 21 | 14 | 53 | 28 | 16.5 | 23 |
| LQ1U4A-R4 | 1/2 " | 1/8 " | ||||||||
| *LQ1U5A-R2 | 3/4 " | 3/8 " | 29 | 20 | 26 | 17 | 66.5 | 39 | 23 | 32 |
| LQ1U5A-R3 | 3/4 " | 1/4 " | 15 | 14 | 61.5 | 16.5 | ||||
| LQ1U6A-R2 | 1 " | 1/2 " | 39.5 | 24 | 36 | 21 | 87 | 49 | 28 | 46 |
| *LQ1U6A-R4 | 1 " | 1/4 " | 20 | 17 | 82 | 23 | 36 | |||
Units: mm
Note: Products marked with '*' are manufactured to order (the main body of the fitting is machined PTFE).
| Size | Made to order | Model | A side | B side |
|---|---|---|---|---|
| Applicable tube size (inches) | ||||
| 4 | - | LQ1U4A-R2 | 1/2 "× 3/8 " | 1/4 "× 5/32 " |
| - | LQ1U4A-R4 | 1/8 "× 0.086 " | ||
| 5 | * | LQ1U5A-R2 | 3/4 "× 5/8 " | 3/8 "× 1/4 " |
| - | LQ1U5A-R3 | 1/4 "× 5/32 " | ||
| 6 | - | LQ1U6A-R2 | 1 "× 7/8 " | 1/2 "× 3/8 " |
| * | LQ1U6A-R4 | 1/4 "× 5/32 " | ||
Note 1: Products marked with '*' are manufactured to order (the main body of the fitting is machined PTFE).
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.