LF-BW series RO membrane is the mainstream industrial Reverse Osmosis membrane for brackish water treatment, this standard RO membrane element is core deep purification consumable of all pure water production lines. The composite aromatic polyamide material of this RO membrane filter keeps stable high salt rejection rate under long-term continuous operation, effectively separate salt ions, colloids and microorganisms from raw water. Before raw water enters any Reverse Osmosis membrane element, pre-treatment with UF membrane and Ultrafiltration membrane module is mandatory to reduce fouling speed of RO membrane. All BW Reverse Osmosis membrane filter are classified under Water Filter Element, we also supply complete coalescer cartridge and separator filter for oil & gas industry via gas filter element.
Working Principle of LF-BW RO Membrane Element
Under standard 1.55MPa driving pressure, brackish raw water flows tangentially across the surface of RO membrane. Tiny water molecules penetrate dense polyamide layer of Reverse Osmosis membrane and gather in central permeate tube to form qualified pure water; dissolved salts, heavy metals and organic pollutants cannot pass through RO membrane filter and discharged with concentrated water flow. The spiral winding design of each Reverse Osmosis membrane element maximizes effective filtration area inside limited pressure vessel, improve daily water yield and reduce equipment investment cost of pure water station.
Main Technical Index
Membrane Material of RO membrane filter: High performance composite polyamide film
Stable Salt Rejection of Reverse Osmosis membrane: ≥99.6%
Max Continuous Pressure of RO membrane element: 1.6MPa
Working Temp Range for RO membrane: 5℃ ~ 45℃
Matching Pre-treatment: UF membrane, Ultrafiltration membrane module, High Flow Filter
All LF-BW Reverse Osmosis membrane element pass pressure resistance and desalination aging test before shipment, fully compatible with standard 4/8-inch RO pressure vessels matched with High Flow Filter.
Five Core Advantages
1 Ultra Stable Desalination Performance
Long-running RO membrane filter keeps consistent salt rejection without attenuation.
2 Large Single Element Water Output
Big area Reverse Osmosis membrane element cuts total quantity of RO membrane.
3 Anti-fouling Hydrophilic Surface
Reduce organic adhesion on RO membrane, extend chemical cleaning cycle.
4 Wide Industrial Matching
Suitable for electronics, pharmacy, food and boiler water Reverse Osmosis membrane filter projects.
5 Good Chemical Tolerance
Resist weak acid & alkali cleaning for routine maintenance of RO membrane element.
Application Scenarios
LF-BW RO membrane is widely used in electronic ultra-pure water, pharmaceutical preparation water, food beverage processing and thermal power boiler water supply, matched with UF membrane module to build full set raw water pre-desalination system.
Full LF-BW Series Model List
LF-BW-4021, LF-BW-4040, LF-BW-8040, LF-BW-8040-440, LF-BW-8040PRO
Other Related Products
PVDF UF Membrane Module
FAQ About LF-BW RO Membrane
Q1 What pre-treatment is needed before installing Reverse Osmosis membrane element?
A1 Equip UF membrane and high flow filter to remove colloids and protect RO membrane filter.
Q2 What is standard salt rejection of this RO membrane?
A2 Stable salt rejection of LF-BW Reverse Osmosis membrane reaches above 99.6%.
Q3 What cleaning agent can use on RO membrane element?
A3 Only mild acid and alkali special cleaning liquid, strong corrosive liquid will damage RO membrane filter.
Q4 Can Reverse Osmosis membrane run over 45℃ long time?
A4 Continuous working temperature cannot exceed 45℃ to avoid irreversible aging of RO membrane element.
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