High electricity expenditure has become a core pain point for most small and medium pure water stations running tap water and shallow well water with TDS below 500ppm. Conventional LF-BW brackish RO membrane requires 225psi standard working pressure, which brings long-term high load on high-pressure pumps and pushes up monthly operation costs sharply. Our independently manufactured LF-XULP series ultra-low pressure reverse osmosis element adopts optimized aromatic polyamide TFC composite coating, achieving stable 98.5 average salt rejection under only 100psi test pressure. This design reduces the whole system’s energy consumption by nearly one third, and lowers the pressure bearing requirement of pipelines and FRP pressure vessels to save equipment investment at the early construction stage.
All LF-XULP energy-saving RO membrane models and matched PAN internal pressure UF membrane pretreatment modules are fully listed in our water filter element
Core Product Parameters & Series
1. LF-XULP-4021: Membrane area 3.3㎡, daily water yield 3.8m³, minimum salt rejection 97.5%
2. LF-XULP-4040: Membrane area 9.3㎡, daily water yield 7.6m³, minimum salt rejection 97.5%
3. LF-XULP-8040: Membrane area 37.2㎡, daily water yield 39.7m³, minimum salt rejection 97.0%
4. LF-XULP-8040-440: Membrane area 40.9㎡, daily water yield 47.3m³, minimum salt rejection 97.0% Test standard: 100psi pressure, 500ppm NaCl solution, temperature 25℃, pH 7.0±0.5
Main Application Scenarios
1. Small bottled mineral water and beverage blending pure water production equipment
2. Community, campus and office centralized domestic purified water supply station
3. Small laboratory and clinic medical sterile water pretreatment line
4. Rural low-salinity underground well water upgrading desalination project
5. Food factory low-tonnage process water treatment system
6. Small hotel integrated domestic water purification unit
Key Performance Advantages
1. Ultra-low operating pressure design drastically cuts pump power consumption year-round
2. Balanced high flux and stable desalination rate without sacrificing water quality
3. Wide continuous operation pH range 3–10, compatible with routine acid & alkali cleaning
4. Low differential pressure attenuation after long-term 24-hour continuous running
5. Universal 40/80 inch size, direct replacement of mainstream foreign brand RO elements
6. Complete supporting PVDF UF membrane matching scheme to control inlet SDI below 3
Recommended complete pretreatment flow: Raw water → Multimedia filter → PAN internal pressure UF membrane → 5μm high-flow security filter → LF-XULP RO membrane. This two-stage filtration system effectively intercepts colloids and algae to extend RO service life by 2–3 times. Our technical team provides free raw water TDS analysis and energy-saving scheme customization according to customer hourly water volume demands.
If you are interested in our membrane solutions, please contact us.
