ULP series can work under ultra low pressure to reach as high permeate flow and salt rejection as regular low pressure membrane.It operates under approximately two thirds of the operating pressure of regular low pressure composite membrane and achieves a good salt rejection.
Model |
Membrane area ft2(m2) |
Operating pressure psi(MPA) |
Average permeated flow GPD(M3/D) |
Stable rejection rate(%) |
ULP4021 | 36(3.3) | 150(1.05) | 1000(3.8) | 99.0 |
ULP4040 | 78(7.2) | 150(1.05) | 2500(9.8) | 99.0 |
ULP8040 | 400(37) | 150(1.05) | 10500(39.5) | 99.0 |
Temperature of Testing Solution:25°C |
Concentration of Testing Solution(NaCl):2,000ppm |
PH Value of Testing Solution:7.5-8 |
Recovery Rate of Single Membrane Element:15% |
Max. Working Pressure:600 psi(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) |