ULP aromatic polyamide composite elements are specially designed for groundwater and surface water treatment. Their operating pressure is approximately 2/3 that of conventional low-pressure brackish water membranes, while achieving a rejection rate of up to 99.5%. With such high salt rejection, they can also deliver the required permeate flow at very low operating pressures.
These elements are primarily used for treating surface water, groundwater, and municipal water with salinity below 2000 mg/L. Typical applications include bottled drinking water, dual water supply systems in residential communities or industrial parks, and food and beverage production. They are characterized by high permeate flow, low operating pressure, and excellent salt rejection.
| Model | Active Area ft 2 (m2) |
Concentrate Channel Spacer mil |
Permeate Flow Rate GPD(m 3 /d) |
Stabilized Salt Rejection (%) |
Minimum Salt Rejection (%) |
| ULP-8040-2 | 400(37.2) | 34 | 10000(37.8) | 99.50 | 99.30 |
Standard Test Conditions:
| Solution | Temperature (°C) | pH | Operating Pressure psi(MPa) |
Recovery (%) |
| 1500mg/L NaCl | 25 | 7.5-8.0 | 150(1.03) | 15 |
Water Production Fluctuation Range: ±15%
Membrane Element Operating Limits:
| Maximum Operating Pressure | 600 psi(4.14MPa) |
| Maximum Feed Flow Rate | 17.0m3/h |
| Operating Temperature Range | 45 ℃ |
| Maximum Feed SDI 15 | 5.0 |
| Free Chlorine Tolerance | 0.1mg/L |
| pH Range, Continuous Operation | 3-10 |
| pH Range, Short-Term Cleaning | 1-13 |
| Maximum Element Pressure Drop | 15psi(0.1MPa) |
