LF-SW High Pressure Seawater RO Membrane Element For Offshore Platform Fresh Water

Island and offshore platform projects face ultra-high salinity seawater, ordinary brackish RO membrane will be compacted and lose efficiency under high pressure. LEFILIER LF-SW seawater dedicated RO membrane is heavy-duty RO membrane element designed for full-strength 32000ppm seawater, thick reinforced polyamide RO membrane filter can work stably under 8.28MPa high pressure, salt rejection keeps 99.7%, far beyond general Reverse Osmosis membrane. As core fresh water making consumable for marine facilities, LF-SW Reverse Osmosis membrane element must match large-flux marine anti-fouling UF membrane module to intercept marine algae and plankton, protect high-pressure RO membrane filter. Our factory has complete seawater membrane pressure aging test equipment, all LF-SW RO membrane pass 32000ppm salt water long-term test, all water treatment series on Water Filter Element, oil & gas filtration parts on gas filter element.

High Salt Resistance Principle Of LF-SW RO Membrane Element

Full-salinity seawater is pressurized to 5.5~8.28MPa and flows over LF-SW RO membrane. The thick reinforced polyamide substrate of this Reverse Osmosis membrane avoids pressure compaction, dense separation layer blocks sodium chloride and marine organic matter completely, pure water molecules penetrate into central permeate tube to form drinking fresh water. Wide spacer design of RO membrane filter slow salt crystal accumulation, extend the service life of Reverse Osmosis membrane element for offshore projects.

Core Technical Parameters

• Membrane Material: Thick reinforced polyamide for RO membrane filter

• Stable Salt Rejection of Reverse Osmosis membrane: ≥99.7%

• Max Continuous Pressure of RO membrane element: 8.28MPa (1200psi)

• Test Raw Water Salinity: 32000ppm NaCl seawater for RO membrane

• Matching Pre-Treatment: Marine large flux UF membrane module

Each LF-SW Reverse Osmosis membrane element completes high-pressure aging test, matched with anti-corrosion high-pressure vessels and High Flow Filter.

5 Marine Environment Exclusive Advantages

1 Ultra High Salt Tolerance
Stable operation in 32000ppm seawater RO membrane filter.

2 Anti-Pressure Compaction Substrate
No performance attenuation for long high-pressure Reverse Osmosis membrane element.

3 99.7% Super Desalination Rate
One-step seawater to drinking RO membrane permeate water.

4 Wide Anti-Scaling Spacer
Reduce marine salt deposit on Reverse Osmosis membrane.

5 Marine Corrosion Matching
Fit offshore platform high-pressure desalination equipment.

Application Scenarios

LF-SW RO membrane is exclusive marine RO membrane element for islands and offshore drilling platforms, cooperate with marine Ultrafiltration membrane module to build full seawater desalination solution.

Full Model List

Full Model No.	Specification Introduction
LF-SW1-4021	4-inch small island mini Reverse Osmosis membrane, daily output 2.8 tons
LF-SW1-4040	4-inch standard coastal small plant RO membrane element, 7.2 cubic meters per day
LF-SW2-8040	8-inch mainstream offshore platform RO membrane filter, daily flux 31 tons
LF-SW2-8040-PRO	Enhanced high-yield seawater Reverse Osmosis membrane, 34 tons daily water yield
LF-SW3-2540	2.5-inch miniature lab seawater test RO membrane

Other Related Products

LF-BWFR Anti-Fouling Brackish RO Membrane

FAQ About LF-SW RO Membrane

Q1 Can LF-SW replace BW RO membrane filter directly?
A1 Same size, but need upgrade high-pressure pump for this seawater Reverse Osmosis membrane element.

Q2 What’s the maximum applicable salinity of this RO membrane?
A2 Standard 32000ppm full seawater for offshore platform Reverse Osmosis membrane.

Q3 Is UF membrane module mandatory before seawater RO membrane element?
A3 Yes, interception marine algae to avoid rapid fouling of RO membrane filter.

Q4 What’s the max safe working pressure of LF-SW RO membrane?
A4 Continuous safe pressure up to 8.28MPa for marine desalination Reverse Osmosis membrane.