Thermal power boiler make-up water and semiconductor wafer cleaning ultrapure water put forward extremely strict silica and heavy metal removal requirements for RO membrane. Ordinary low-flux reverse osmosis elements have weak SiO2 interception capacity, easily forming hard scale on boiler tubes and precision electronic equipment, raising equipment failure frequency and maintenance expenditure. Our LF-BW standard low-pressure brackish RO element adopts high-density polyamide separation layer, achieving over 98 silica removal rate and maximum 99.7 stable salt rejection. Max 440 sq.ft large membrane area realizes high-volume low-conductivity pure water production under medium pressure, becoming the mainstream core membrane for two-stage RO + EDI ultrapure water systems in power and new energy industries.
All LF-BW industrial RO membrane and large-area PVDF UF membrane supporting modules can be checked in our water filter element.

Core Product Parameters & Series
1. LF-BW-4021: 3.3㎡ area, daily water output 3.6m³, salt rejection ≥99.5%
2. LF-BW-4040: 9.3㎡ area, daily water output 9.8m³, salt rejection ≥99.6%
3. LF-BW-8040: 37.2㎡ area, daily water output 39.7m³, salt rejection ≥99.6%
4. LF-BW-8040-440: 40.9㎡ area, daily water output 45.4m³, salt rejection ≥99.6%
5. LF-BW-8040-440PRO: 40.9㎡ area, daily water output 47.3m³, salt rejection ≥99.6%
Test condition: 225psi pressure, 2000ppm NaCl, temperature 25℃, pH 7.5–8.0
Main Application Scenarios
1. Large thermal power plant boiler supplementary pure water desalination station
2. Lithium battery and photovoltaic panel cleaning ultrapure water line
3. Semiconductor chip two-stage RO + EDI high-purity water equipment
4. Large pharmaceutical factory injection purified water system
5. Mine underground brackish water centralized treatment station
6. Large food factory central edible pure water unit
Key Performance Advantages
1. Excellent SiO2 and TOC interception capacity to avoid boiler/electronic scaling
2. Max 440 sq.ft oversized membrane area for high single-tank water yield
3. Stable maximum salt rejection rate up to 99.7 for ultra-low conductivity water
4. Low long-term differential pressure reduces high-pressure pump power loss
5. Direct interchangeable with international mainstream brand RO elements
6. Perfect match large-area PVDF UF membrane for stable inlet SDI control

We recommend LF-UF-2880W large-flux PVDF ultrafiltration as front pretreatment to eliminate colloidal silica and extend EDI module service life significantly. We have abundant global power and new energy project delivery experience with long-term bulk preferential prices for engineering companies.
If you are interested in our membrane solutions, please contact us.
