Ultra-clean PES Pleated Cartridge Filter for Sterile Filtration

This Ultra-clean PES Pleated Cartridge Filter Series is engineered as a high-precision hydrophilic filtration element, constructed with a polyethersulfone (PES) membrane as the core media. The support layers, outer cage, end caps, and core rod are manufactured from high-purity polypropylene (PP), while sealing options include silicone, fluororubber, and EPDM to accommodate various fluid compatibility requirements. Each 10-inch cartridge provides an effective filtration area of no less than 0.6㎡, with the pleated design significantly enhancing dirt-holding capacity and water flux.

The filter exhibits strong intrinsic hydrophilicity, enabling immediate water passage without pre-wetting, reducing flow resistance and pumping energy consumption. Every unit undergoes 100% membrane integrity testing prior to shipment, ensuring stable and reliable retention performance. Key advantages include ultra-low protein adsorption and minimal extractables, which preserve active ingredients in valuable pharmaceutical fluids, alongside excellent biocompatibility. Manufactured and packaged in a Class 1000 cleanroom, the finished cartridge meets high cleanliness standards. It endures repeated autoclave sterilization at 121°C for 30 minutes per cycle for over 100 cycles, with endotoxin levels below 0.25 EU/mL. All materials comply with USP Class VI medical-grade biological safety requirements. Maximum operating temperature is 80°C, with forward pressure resistance of 0.42MPa and reverse of 0.24MPa at 25°C.

Our manufacturing expertise, which also covers advanced material solutions like Silicon Carbide Ceramic Membranes and Inorganic Membranes, ensures strict quality protocols are applied to this PES series. For clients seeking broad-spectrum Liquid Filtration & Purification options, this cartridge serves as a reliable choice for high-purity liquid streams. While equipment such as Ceramic Membrane Gas-Solid Separation Equipment targets high-temperature gas applications, this PES filter is specifically tailored for low-temperature liquid sterile processes. Typical applications include high-purity chemical reagent polishing, terminal fine filtration in electronic water treatment systems, and sterile filtration of injections, oral liquids, and beverages in the pharmaceutical and food & beverage industries, precisely retaining bacteria and fine particulates while minimizing product loss.