High Flow Filter Cartridge 1 Micron 40 Inch PP Pleated for SWRO Desalination RO System

The PHFL-40-1 High Flow Filter Cartridge is a precision-engineered pleated polypropylene filtration element designed to deliver 1 micron absolute rated particle removal for critical seawater reverse osmosis (SWRO) desalination pre-filtration systems. With an outer diameter of 6 inches (152mm) and a length of 40 inches (1016mm), this single open-end cartridge provides a substantial filtration area of 6.6 square meters while enabling a maximum flow rate of 70 cubic meters per hour. The inside-to-outside flow direction ensures contaminants are effectively trapped within the depth filter media, offering comprehensive protection for downstream RO membranes against suspended solids, silt, colloidal particles, and other fine particulates that cause membrane fouling and irreversible performance degradation.

Manufactured with gradient aperture deep polypropylene fiber filter media, the PHFL-40-1 progressively captures particles of varying sizes as the fluid passes through the media layers. The pore structure becomes increasingly finer along the flow path, enabling exceptional dirt holding capacity while maintaining low flow resistance throughout the service life of the cartridge. All structural connections are sealed through thermal welding technology, eliminating the need for adhesives or binders that could introduce extractables into the filtered water stream. The glass fiber reinforced polypropylene end caps provide superior mechanical integrity under high differential pressure conditions, while the one-piece 40-inch outer cage withstands significant physical loads to ensure long-term operational reliability.

• Absolute 1 Micron Filtration: Precise 1 micron absolute rated particle removal ensures effective barrier protection for sensitive RO membranes, preventing fouling from fine silt, colloids, and suspended solids in seawater and brackish water feed streams.
• Gradient Depth Filtration Media: Multi-layer polypropylene fiber structure with progressively decreasing pore size along the flow direction maximizes dirt holding capacity and extends service intervals compared to single-layer surface filtration cartridges.
• Inside-to-Outside Flow Pattern: Engineered flow direction from inner core to outer diameter captures all contamination within the depth media, preventing particle release even under flow fluctuation or pressure surge conditions.
• Thermal Weld Construction: All media-to-end-cap and support connections utilize thermal welding, ensuring zero adhesive contamination and maintaining structural integrity at operating temperatures up to 82 degrees Celsius.
• One-Piece Outer Cage Design: The integral 40-inch outer support cage withstands significant mechanical stress, enabling the cartridge to endure high differential pressure of up to 3.44 bar without deformation or bypass.
• High Filtration Efficiency of 99.8%: Verified particle removal efficiency reaches 99.8 percent at the rated micron level, delivering consistent and reliable effluent quality throughout the entire cartridge service life.
• Compact System Footprint: The 6-inch large diameter design enables filtration systems up to 50 percent smaller than conventional cartridge-based systems with equivalent flow capacity, reducing capital expenditure and installation space requirements.

The PHFL-40-1 high flow filter cartridge is purpose-built for seawater reverse osmosis desalination plant pre-filtration, where fine particle removal at 1 micron absolute is critical for protecting high-value RO membrane elements from irreversible fouling. In addition to SWRO pre-treatment, this cartridge excels in industrial process water purification requiring sub-micron quality influent, power plant condensate polishing systems, boiler feed water pre-filtration, and municipal water treatment facilities handling surface water with elevated silt density index (SDI). The polypropylene construction ensures broad chemical compatibility across pH ranges from 1 to 14, making the cartridge suitable for petrochemical process water, chilled water circuits, and brine filtration applications where chemical resistance and consistent particle removal are equally essential.

Each PHFL-40-1 cartridge is individually sealed in a clean poly bag and packed in heavy-duty export-grade carton boxes with protective dividers, 4 pieces per carton. Every production batch undergoes rigorous quality inspection including bubble point testing, visual defect inspection under controlled lighting, dimensional verification against engineering drawings, and statistical sampling for particle removal efficiency. Pullner maintains ISO 45001 occupational health and safety, ISO 14001 environmental management, and ISO 9001 quality management system certifications, ensuring consistent manufacturing quality across all production lots. Complete material traceability records, certificates of analysis, and compliance documentation are available upon request. Free technical support and product samples are provided for qualification testing.