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Sea Water RO Membrane

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Sea Water Ro Membrane Elements SW-4040HF

Sea Water RO Membrane Elements SW-4040HF is a specialized solution for high-salt water treatment, mainly designed for desalination of seawater or high-salt concentration raw water with a salt content of over 10000mg/L. Compared with the SW-4040HR model, this membrane appropriately reduces the desalination rate while significantly increasing membrane water production—this balanced design not only enhances water output efficiency but also effectively reduces energy consumption during operation, further lowering the overall economic costs of water treatment projects. In terms of application areas, it covers a wide range of high-demand scenarios: it is widely used in seawater desalination projects, RO concentrated water reuse, zero-discharge treatment of high-salt wastewater, and material concentration, fully demonstrating its versatility and practical value in high-salt water treatment fields.

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Category Introduction

The Sea Water RO Membrane series is suitable for desalination and deep treatment of seawater and high-concentration brackish water.
Delivering ultra-high salt rejection rates, they deliver optimal long-term economic performance for desalination systems.
The optimized 34-mil inlet flow channel reduces pressure drop and enhances the membrane element's resistance to fouling and cleaning.
They are widely used in seawater desalination, high-concentration brackish water desalination, boiler feed water, papermaking, textile printing and dyeing, and material concentration.

Product Information

Model Stable Rejection  Min Rejection Permeate  Flow Effective Membrane Area Spacer Thickness
(%) (%) GPD(m³/d) ft2(m2) (mil)
SW-4040HF 99.7 99.6 1900(7.2) 85(7.9) 34
Testing Conditions Operating pressure 800 psi(5.52 MPa)
Test solution temperature 25 ℃
Test solution concentration (NaCl) 32000 ppm
PH value  7-8
Recovery rate of a single membrane element 8%
Flow range of a single membrane element ±15%
Operating Conditions & Limits Maximum operating pressure 1200 psi(8.28 MPa)
Maximum temperature 45 ℃
Maximum feedwater flow Maximum feedwater flow: 4040-16gpm(3.6m3/h)
Maximum feedwater flow SDI15 5
Maximum concentration of free chlorine: <0.1ppm
Allowed pH range for chemical cleaning 2-11
Allowed pH range for feedwater in operation 1-13
Maximum pressure drop per element 15psi(0.1MPa)
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