Product Introduction

Daltonen Membrane FRLE series reverse osmosis membrane components have strong anti pollution performance and low energy consumption performance, and are developed for treating highly biologically or organically polluted water sources. Its operating pressure is about 30% lower than that of ordinary reverse osmosis membrane components for desalination of brackish water, and the stable desalination rate can reach over 99.3%. The FRLE anti pollution and low energy consumption series membrane components come in two sizes: 8-inch and 4-inch, suitable for municipal water treatment.


Product advantages

· It can effectively reduce the energy consumption of membrane system operation and improve the economic efficiency of system operation

· Good pollution resistance and high pollution influent water quality

· 35mil special inlet channel, more resistant to pollution


Product size


SizeA inch (mm) SizeB inch (mm) SizeC inch (mm) SizeD inch (mm)
DA-FRLE400-ADD 40(1,016) / 1.125(29) 7.9(201)
DA-FRLE4040-ADD 40(1,016) 1.05(26.7) 0.75(19) 3.9(99)



Product parameters


ModelEffective area Ft(㎡) Stable boron removal rate(%) Minimum rejection rate(%)     Water yield gpd(m³/d)
DA-FRLE400-ADD 400(37.2) 99.5 99.3 11,500(44)
DA-FRLE4040-ADD 85(7.9) 99.6 99.4 2050(7.8)


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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