LEFILTER presents the CPI-1080 Ultrafiltration Membrane for Salt Water Pretreatment, an advanced membrane solution crafted to serve as a reliable Canpure equivalent. Specifically designed for seawater and brackish water pretreatment applications, this ultrafiltration module provides highly effective removal of suspended solids, microorganisms, and colloidal particles — safeguarding downstream reverse osmosis systems and other sensitive processes. With its robust PVDF hollow fiber construction and optimized filtration performance, the CPI-1080 stands out as a dependable choice for ultrafiltration membrane for salt water pretreatment applications, ensuring system protection and long-term operational stability.
Product Parameters
Model | CPI-1080 |
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Membrane Material | PVDF (Polyvinylidene Fluoride) |
Membrane Structure | Hollow Fiber |
Filtration Mode | Outside-in |
Nominal Pore Size | 0.03 μm |
Effective Membrane Area | 80 m² |
Fiber Outer / Inner Diameter | 1.3 mm / 0.7 mm |
Operating Pressure | 0.1 – 0.3 MPa |
Maximum TMP | 0.5 MPa |
Operating Temperature | 5 – 45°C |
Cleaning pH Range | 2 – 11 |
Recommended Backwash Pressure | 0.2 – 0.3 MPa |
Air Scour Rate | 8 – 10 Nm³/h |

The CPI-1080 module delivers consistent high-flux filtration with excellent fouling resistance, making it suitable for challenging feedwater conditions. Its chemical durability and stable pore structure ensure reliable operation in pretreatment setups for seawater desalination and industrial saline water treatment systems.
Application Fields
Seawater Desalination Pretreatment Systems
Brackish Water RO Pretreatment
Salt Water Industrial Process Filtration
Offshore Platform Water Treatment Units
Municipal Waterworks with High Salinity Sources
FAQ
Q: Is the CPI-1080 compatible with Canpure-designed ultrafiltration systems?
A: Yes, this membrane is designed as a functional equivalent, ensuring seamless replacement or integration into existing Canpure membrane systems.
Q: What benefits does the CPI-1080 provide for salt water pretreatment applications?
A: It efficiently removes particulates, microorganisms, and colloids, reducing membrane fouling risks in downstream RO systems and improving overall treatment efficiency.