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  • 4040 RO membrane
4040 RO membrane

4040 RO membrane

ULP Series 8inch RO Membrane Element

Model ULP11-4040 ULP21-4040 ULP31-4040
Performance Stabilized salt rejection(%) 98.0 99.0 99.4
Minimum Rejection Rate(%) 97.5 98.5 99.0
Permeate flux rate GDP(m3/d) 2800(10.6) 2400(9.1) 1900(7.2)
Active Membrane Area ft2(m2) 85(7.9) 85(7.9) 85(7.9)
Test condition Testing Pressure 150pai(1.03Mpa)
Temperature of Testing Solution 25℃
Concentration of Testing Solution (NaCl) 1500ppm
pH Value of Testing Solution 7.5
Recovery Rate of Single Membrane Element 15%
Operating limit Max. Working Pressure 600psi(2.07Mpa)
Max. Feedwater Temperature 45℃
Max. Feedwater SDI 5
Free Chlorine Concentration of Feedwater <0.1ppm
pH Range of Feedwater during Continuous Operation 3~10
pH Range of Feedwater during Chemical Cleaning 2~12
Max. Pressure Drop of Single Membrane Element 15psi(0.1Mpa)