Product Introduction

The Daltonen Membrane SW seawater desalination dedicated reverse osmosis membrane element adopts innovative membrane technology, with strong compressive tightness of the membrane support layer, thick and dense skin layer, wear resistance, and chemical degradation resistance; By utilizing a short membrane structure and increasing the number of membrane pages, the membrane efficiency is greatly improved, achieving high desalination rate and boron retention rate under high water production conditions. Wide pH resistance range, high cleaning efficiency, and the ability to perform powerful and efficient cleaning with ordinary acids and alkalis. Due to thorough cleaning, the membrane system can operate at low pressure for a long time, greatly reducing operating costs and improving the economic benefits of the entire system.


Product advantages

· High desalination rate

· Has compressive tightness, pollution resistance, and high cleaning efficiency

· Improving the overall economic benefits of seawater desalination systems


Product size


Size A inch (mm) Size B inch (mm) Size  C inch (mm) Size D inch (mm)
DA-SW365-HRLE 40( 016) / 1.125(29) 7.9(201)
DA-SW400-HRLE 40(016) / 1.125(29) 7.9(201)
DA-SW440-HRLE 40 (1,016) / 1.125(29) 7.9(201)



Product parameters


ModelEffective area ft(㎡) Stable boron removal rate% Stable rejection rate% Minimum rejection rate%         Water yield gpd(m³/d)
DA-SW365-HRLE 365(34) 90 99.80 99.70 6.700(25)
DA-SW400-HRLE 400(37.2) 90 99.80 99.70 7,500(28)
DA-SW440-HRLE 440(41) 90 99.80 99.70 8,200(31)



Instructions for use

Maximum working pressure 83 bar (1200psi) Continuous operation PH range PH 2-11
Maximum operating temperature 45°C (113°F) Continuous operation PH range <0.1ppm
Maximum inlet water SDI value 5.0 Continuous operation PH range ±15%
Chemical cleaning PH range PH 1-13 Effective membrane area variation range ±3%
Maximum pressure drop for a single membrane element 1.2 bar (15psi) Time to obtain stable desalting rate Run continuously for 24h-48h

For more information, please call the hotline 0755-66611508 or download the technical manual.

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