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RO membrane

Extreme Low Pressure RO Membrane Element

Model No : ULP-4040/8040/4040HR/4040MR

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ULP Series:  

Ultra Low Pressure Composite RO Membrane Elemens  ULP series membrane can, under the conditions of extra low operating pressure, obtain as high  permeate flow and rejection rate as the regular low-pressure membrane. Its operating pressure is  approximately 2/3 to the operating pressure of the regular low pressure composite membrane, and it  can reach the rejection rate as high as 99.0 percent.


It is applicable to the desalination of municipal water, groundwater with salt concentration less than 1500ppm. It can be widely used in residential dual water supplying system, pure water preparation plant, industry, food production and other fields etc..



Reverse Osmosis  Membrane Element 
1-Membrane sheet’s technology import from USA

2-Membrane sheet and element are produce at our factory with reliable quality  .
3-reasonable price 
4-flexible service



Model Active Membrane Area ft2(m2) Permeate Flow GPD(T/D) Stable Rejection Rate (%) Min. Rejection Rate (%)
ULP-4040HR 85(7.9) 1800(6.8) 99.5 99.4
ULP-4040MR 85(7.9) 2200(8.3) 99.3 99.2
ULP-4040 85(7.9) 2600(9.8) 99.0 98.5
ULP-8040 400(37.2) 10000(37.8) 99.5 99.2


Concentration of Solution (NaCl) Temperature(℃) pH Value > Operating Pressure psi(MPa) Recovery Rate(%)
1500ppm 25 7.5-8 150(1.03) 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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