CM Ultra Low Pressure (ULP) Series RO Membrane Elements
Product Features
ULP series membrane module is a reverse osmosis membrane product for desalination and purification of TDS≤1000mg/L water quality. When the membrane system is operating at low pressure, it combines high salt rejection rate with water permeability. ULP membrane has wide adaptability to water quality and has good ability to remove TOC and fluoride ions in water. The product can be applied to the desalination and purification of municipal tap water, surface water and other similar water sources.
Product size
Unit: mm (inch)
Membrane element specifications and performance
| Membrane Element Model | Stable Desalination Rate (%) |
Minimum Desalination Rate (%) |
Average Water Output GPD (m³/d) |
Effective Membrane Area ft²(m²) |
| CM-ULP-4040 | 99 | 98.5 | 2500(9.8) | 78 (7.2) |
| CM-ULP-8040 (400) | 99 | 98.5 | 11000(41.6) | 400 (37.2) |
| CM-ULP-8040 (440) | 99 | 98.5 | 12000(45) | 440 (41) |
Test conditions
Test pressure…………………………………………………………………………110 psi(0.76 MPa)
Test solution temperature……………………………………………25℃
Test solution concentration (NaCl)…………………………1000 ppm
Test solution pH……………………………………………………………………7.5
Recovery rate of single membrane element………15%
Extreme conditions
Maximum operating pressure………………………………………600 psi (4.14 MPa)
Maximum water flow…………………………………………………………75 gpm (17 m³/h) (8040) 16 gpm (3.6 m³/h) (4040)
Maximum water temperature………………………………………45°C
Maximum water SDI₁₅…………………………………………………………5
Free chlorine concentration in water………………………<0.1 ppm
pH range in water during continuous operation…2-11
pH range in water during chemical cleaning…………1-13
Production workshop
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chris Li
Hi, I'm Chris Li. I'm the father of a 6-year-old boy, and I've also worked in the water treatment industry for 16 years. I would like to share some of my understanding of this industry with you, and I hope it can be helpful.
