Low Pressure Membrane Element Series (ULP-8040, ULP-4040).
Model | Active Membrane Area(ft2(m2) | Operating Pressure psi(MPa) | Permeate Flow GPD(m3/d) | Stabilized Salt Rejection (%) | Min. Salt Rejection (%) |
ULP-8040 | 400(37.2) | 155(1.05) | 10500(39.7) | 99.2 | 98.5 |
ULP-4040 | 78(7.2) | 155(1.05) | 2200(8.3) | 99.2 | 98.5 |
ULP-8040HR | 400(37.2) | 155(1.05) | 9500(35.9) | 99.5 | 99.0 |
ULP-4040HR | 78(7.2) | 155(1.05) | 2100(7.5) | 99.5 | 99.0 |
Test Condition
Temperature of Testing Solution | 25 °C |
Concentration of Testing Solution (NaCl) | 1,500ppm |
PH Value of Testing Solution | 7.5-8 |
Recovery Rate of Single Membrane Element | 15% |
Extreme Operation Conditions
Max. Working Pressure | 600psi (4.14Mpa) |
Max. Feedwater Temperature | 45°C |
Max. Feedwater SDI | 5.0 |
Free Chlorine Concentration of Feedwater | 0.1mg/L |
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 | 10psi (0.07Mpa) |
The Application Scope
The ULP RO membranes are operating with lower pressure than BW series membranes, which are mainly applicable to the salt rejection of low-salt water. The standard operating pressure is 1.05 MPa. In actual application, operating pressure is affected by the density of water quality and the system recovery rate, etc.
