Product Introduction

The Daltonen Membrane NF100 nanofiltration membrane element can achieve high water yield while exhibiting excellent monovalent and divalent salt removal performance, effectively removing high organic compounds such as insecticides, herbicides, and THM precursors. In the process of water treatment, while reducing the hardness of the water, it can effectively remove toxic and harmful substances in the water, remove turbidity, chromaticity, and organic matter, and also recover special high valence salts and small molecule organic matter. The NF100 series nanofiltration membrane components come in two sizes: 4 "and 8", suitable for papermaking, printing and dyeing industries, and municipal water treatment systems.

· Excellent removal performance of monovalent and divalent salts

· Suitable for removing TOC and THM precursors

· A system that removes salts and operates with low energy consumption under ultra-low pressure conditions


Product size


Size A inch (mm) Size B inch (mm) Size C inch (mm) Size D inch (mm)
DA-NF100-400 40(1,016) /     1.125(29) 7.9 (201)
DA-NF100-4040 37.9(963) 1.05(26.7) 0.75(19) 3.9(99)



Product parameters


ModelEffective area Ft(㎡) Stable rejection rate(%)     Water yield gpd(m³/d)
DA-NF100-400 400(37.2) 85-95%(NaCI) 7,500(28.4) NaCI
DA-NF100-4040 85(7.9) ≥99%(MgSO4) 9,500(36.0)  MgSO4

Test conditions: inlet pressure 0.48MPa (70 psi); Inlet water temperature 25 ° C (77 ° F); Inlet water quality 2000 ppm NaCI, 2000 ppm MgSO4; The pH value of the inlet water is 8; The recovery rate is 15%.


Instructions for use

Maximum working pressure 41 bar (600psi) Continuous operation PH range PH 2-11
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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