Product Introduction

The Daltonen Membrane LE series reverse osmosis membrane components change the density and surface characteristics of the membrane by changing the formula and production process of the bottom membrane and composite membrane. Compared with traditional brackish water membrane components, it provides a desalination rate of over 99.3% while reducing operating pressure by about 33%. The LE low-power series membrane components come in two sizes, 8-inch and 4-inch, and are widely used in surface water and tap water sources.


Product advantages

· Can effectively reduce the operating pressure and energy consumption of the membrane system

· Has stable desalination rate and water yield

· The membrane system operates economically well

· 34mil special inlet channel, more resistant to pollution


Product size


SizeA inch (mm) SizeB inch (mm) SizeC inch (mm) SizeD inch (mm)
DA-LE400-PLUS 40(1,016) / 1.125(29) 7.9(201)
DA-LE440-MAX 40(1,016) / 1.125(29) 7.9(201)
DA-LE4040-PLUS 37.9(963) 1.05(26.7) 0.75(19) 3.9(99)



Product parameters


ModelEffective area Ft(㎡) Stable boron removal rate% Minimum rejection rate%      Water yieldgpd(m³/d)
DA-LE400-PLUS 400(37.2) 99.5 99.3 11,500(44)
DA-LE440-MAX 440(41) 99.6 99.4 12,650(48)
DA-LE4040-PLUS 85(7.9) 99.6 99.4 2,250(8.7)


Instructions for use

Maximum working pressure 41 bar (600psi) Continuous operation PH range PH 2-10
Maximum operating temperature 45°C (113°F) Allowable free atmosphere content <0.1ppm
Maximum inlet water SDI value 5.0 Flow range of a single membrane element ± 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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