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RO membrane

High Rejection Nanofiltration Membrane Element

Model No : NF1-8040/4040

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Application:

It is applicable to the desalination of direct drinking water, spring water, boiler water, also desalination and decolorization of wastewater with high salt concentration.

SPECIFICATIONS & PARAMETERS

Model Active Membrane Area ft2(m2) Permeate Flow GPD(T/D) Rejection Rate(%) 
500ppm NaCl
Rejection Rate(%) 
2000ppm MgSO4
NF1-4040 85(7.9) 2000(7.6) 50-70 96
NF1-8040 400(37.2) 10000(37.8) 50-70 96

STANDARD TEST CONDITION

Concentration of Solution Temperature(℃) pH Value Operating Pressure psi(MPa) Recovery Rate (%)
500ppm(NaCl) 
2000ppm(MgSO4)
25 7.5-8 70(0.48) 15

Notes: The permeate flow of single membrane element may vary with in ±15%.

Operating Limits and Conditions of Membrane Element:

Max.Working Pressure 600 psi(4.14MPa)
Max. FeedWater Temperature 45 ℃
Max. Feed Water Flow 17.0m3/h(8040), 3.6m3/h(4040)
Max. FeedWaterSDI15 5.0
Free Chlorine Concentration of FeedWater 0.1mg/L
pHRange of FeedWaterDuring Continuous Operation 3-10
pHRange of FeedWaterDuring Chemical Cleaning 2-12
Max. Pressure Drop of Single Membrane Element 10psi(0.07Mpa)

 

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