LEFILTER is proud to present the Liqui-Flux®W20 Ultrafiltration Membrane for Electronic Grade Ultrapure Water, a cutting-edge filtration solution engineered to meet the highest standards required in the semiconductor and precision electronics industries. Designed as an equivalent to the renowned 3M™ Liqui-Flux®W20 module, this membrane module delivers reliable performance, exceptional filtration precision, and long-term operational efficiency, making it a critical asset in ultrapure water (UPW) systems where quality and consistency are non-negotiable
Product Overview
The Liqui-Flux®W20 ultrafiltration module by LEFILTER offers advanced polymeric hollow fiber technology, ensuring a secure barrier against fine colloids, microorganisms, and submicron particles. It stands out in electronic-grade water treatment systems due to its low extractables, superior mechanical integrity, and chemical resistance. This module operates with minimal pressure loss and guarantees high permeate flow, even under challenging operational environments. The W20 is particularly optimized for applications where consistent water purity is essential for yield-sensitive production processes.
Technical Specifications
| Model | Liqui-Flux®W20 UF Module (3M™ Equivalent) |
|---|---|
| Membrane Type | Hydrophilic Polyethersulfone (PES) Hollow Fiber |
| Pore Size | 0.03 μm |
| Nominal Membrane Area | 20 m² |
| Operating Temperature Range | 5°C to 45°C |
| pH Range (operation/cleaning) | 4 – 10 (operation), 2 – 11 (cleaning) |
| Max Operating Pressure | 4.0 bar (58 psi) |
| Typical Flow Rate | 4,000 – 5,500 L/h (depending on feed quality and setup) |
| End Connections | 1.5" TC Clamp (Sanitary Design) |
| Housing Material | High-grade PVDF/Polypropylene |
| Module Length | Approx. 1,200 mm |
| Outer Diameter | Approx. 180 mm |
All specifications are carefully verified and tailored for integration into ultrapure water treatment lines across fabs and high-tech manufacturing environments.
Application Areas
This ultrafiltration membrane is meticulously developed for deployment in electronic-grade ultrapure water treatment systems, particularly:
Semiconductor fabrication plants: to maintain stringent resistivity and TOC (Total Organic Carbon) limits for wafer rinsing and process water.
TFT-LCD manufacturing: as a polishing step to guarantee low particle and bacteria levels.
Photovoltaic cell production: for high-purity rinsing stages and chemical dilution systems.
Precision optical and LED industries: where trace contaminants can lead to product defects.
The Liqui-Flux®W20 equivalent module from LEFILTER seamlessly integrates into existing UPW systems, especially those originally designed for 3M™ membrane configurations, reducing replacement complexity while enhancing process reliability.
FAQ
Q1: Is this membrane module a direct fit for systems using 3M™ Liqui-Flux®W20 modules?
A1: Yes, LEFILTER's W20 equivalent is structurally and functionally compatible with systems built around the 3M™ W20, providing a smooth retrofit option.
Q2: How often should the module be cleaned?
A2: Cleaning intervals depend on feed water quality and usage intensity, but typically, a chemical cleaning cycle is recommended every 30–90 days to maintain optimal permeability.
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