English 
T: +86-17717097520
E: sales1@melko2015.com
E: sales1@melko2015.com
No.222 Xiangche Rd. Chedun Town Songjiang Dist. Shanghai China 201611
 |
| Quantity: | |
|---|---|
Our 70-inch Jumbo PP Wound Filter is the ultimate pre-filtration solution engineered for mega-capacity seawater reverse osmosis (SWRO) plants. This exceptionally long cartridge is designed to handle the immense sediment load of seawater intake with unmatched efficiency. Its core purpose is to provide maximum protection for downstream ultrafiltration (UF) and reverse osmosis (RO) membranes by offering an extraordinarily large filtration area and dirt-holding capacity. By drastically extending service cycles and reducing change-out frequency, it transforms pre-treatment into a strategic advantage for large-scale operations, ensuring system stability and minimizing total cost of ownership.
Unmatched Operational Economy: Delivers the lowest cost per cubic meter of filtered water for large plants. The massive capacity reduces the total number of change-outs, significantly cutting labor costs, disposal fees, and production downtime.
Engineered for System Simplification: A single 70-inch cartridge can replace multiple shorter cartridges. This allows for fewer filter vessels, simplified piping, and a reduced footprint in your plant's pre-treatment skid, lowering capital and maintenance complexity.
Maximum Process Stability: Provides exceptionally long and predictable service cycles (often several months under standard conditions). This minimizes operational interruptions and ensures a consistent, reliable feed water quality for sensitive downstream membranes.
Superior Corrosion & Chemical Resistance: Manufactured from 100% inert polypropylene, it withstands continuous exposure to seawater, chlorination, and varying pH levels without degradation, ensuring material integrity and safety.
| Material | 100% Polypropylene |
| Micron Rating | 1–50μm |
| Length | 70″ (1778 mm) |
| Diameter | 2.5″ (63mm) |
| Max. Operating Temperature | ≤ 60°C |
| Max. Differential Pressure | 0.25 MPa (Confirm based on core tube spec) |
| End Cap Options | PP Plain, PP Threaded |
| Compatibility | Resistant to seawater, chlorine, and a wide range of chemicals. |
Primary intake pre-filtration for large-scale SWRO plants (Capacity: 10,000+ tons per day).
Pretreatment for ultrafiltration (UF) systems in desalination processes.
Protection of high-pressure pumps and energy recovery devices (ERDs) in industrial desalination.
Standardized consumable for EPC projects in the power, chemical, and petrochemical industries requiring reliable seawater pretreatment.
System Integration: Install in multi-cartridge vessels after coarse screening (e.g., drum filters) and before finer cartridge filters.
Selection: A 20μm or 50μm rating is typically recommended for primary seawater duty.
Monitoring: Replace the cartridge when the pressure drop across the housing reaches 0.15-0.2 MPa above the initial clean pressure.
Safety: Always follow lock-out/tag-out procedures, depressurize, and drain the housing before servicing.
Q: What is the main advantage of a 70-inch filter over standard 40-inch cartridges?
A: The primary advantage is dramatically lower total operating cost. While the unit price is higher, its dirt-holding capacity increases disproportionately. This results in far fewer change-outs, reducing labor, downtime, and waste disposal costs. It is the optimal choice for large facilities focusing on lifecycle cost efficiency.
