Product Introduction

Daltonen Membrane FR series reverse osmosis membrane components use special composite membrane preparation technology to change the charge and smoothness of the membrane surface, enhance the hydrophilicity of the membrane surface, reduce the adhesion of pollutants on the surface, and have strong anti scaling and anti pollution performance. The use of a short membrane structure to increase the number of membrane pages greatly improves the efficiency of membrane use. The FR anti pollution series membrane components come in two sizes: 8-inch and 4-inch, mainly used for treating water sources with high organic and biological pollution, such as smelting wastewater, printing and dyeing wastewater, and industrial wastewater from thermal power plants.


Product advantages

· Has strong anti pollution performance and long service life

· Suitable for membrane treatment systems with poor inlet 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-FR400-PRO 40(1,016) / 1.125(29) 7.9(201)
DA-FR4040-PRO 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-FR400-PRO 400(37.2) 99.6 99.4 11,000(42)
DA-FR4040-PRO 857.9) 99.6 99.4 2,050(7.8)

Test conditions: inlet pressure 1.55 MPa (225 psi); The inlet temperature is 25 ℃ (77 ° F); Inlet water quality 2000 ppm NaCI; 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 连续运行24h-48h

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

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