LFX-CSW™ String Wound Depth Filter Cartridges

• Filter Media: String-wound depth-filtration media available in polypropylene (standard), cotton, or glass-fibre, wound without binders or adhesives to minimise extractables. Outside-to-inside flow configuration supports progressive particulate capture, high void volume and extended dirt-holding capacity.
• GAC Core Variant Construction: Polypropylene string-wound prefiltration media surrounding an internal granular activated carbon bed, supported by polypropylene internal components and post-filtration media. This configuration provides combined particulate reduction and adsorption-based reduction of chlorine, taste, odour and selected organic compounds. The granular activated carbon grade and internal construction are selected according to the intended fluid and target OEM-equivalent configuration.
• Core Materials: Polypropylene core (standard). 304 or 316 stainless-steel cores available and recommended for cotton or glass-fibre media, elevated-temperature service or aggressive operating conditions.
• GAC Core Variant Support Materials: Polypropylene support core and internal components standard, with polypropylene prefiltration and post-filtration media. EPDM sealing is standard where a gasketed construction is required.
• Nominal Retention Ratings: 0.5, 1, 3, 5, 10, 25, 50, 75, 100, 125 and 150 µm nominal depth-filtration grades.
• GAC Core Variant Nominal Retention Ratings: 5 µm standard. OEM-equivalent 10, 20 and 25 µm configurations available on request.
• Nominal Lengths: 5 inch, 9.75 inch, 10 inch, 19.5 inch, 20 inch, 29.25 inch, 30 inch and 40 inch (127–1016 mm).
• GAC Core Variant Nominal Lengths: 4.875 inch, 5 inch, 9.75 inch, 10 inch, 20 inch, 30 inch and 40 inch (124–1016 mm), depending on the required OEM-equivalent configuration.
• Outside Diameter: 2.4–2.5 inch (62–63 mm).
• Inside Diameter: 1.1 inch (28 mm).
• GAC Core Variant Dimensions: OEM-equivalent formats include approximately 1.875 inch outside diameter (47.6 mm) for compact Idromar-compatible cartridges, 2.5 inch outside diameter (63.5 mm) for standard slimline formats, and 2.76 inch outside diameter × 1.14 inch inside diameter (70 × 29 mm) for RWSSC-5-compatible configurations. Exact dimensions shall be confirmed against the target OEM cartridge.
• Dimensional Tolerances: Length ±1 percent or ±3 mm (whichever is greater); outside diameter ±1 mm; inside diameter ±1 mm.
• End Styles and Sealing Options: DOE (double open end) standard. SOE options: 222 flat, 222 fin, 226 flat and 226 fin. Elastomer options: EPDM (standard), Silicone, NBR (Buna-N) and FKM (Viton®) on request.
• GAC Core Variant End Styles: DOE standard. Alternative end styles and sealing configurations are available subject to dimensional and application review.
• Operating Temperature Limits (by Construction): Polypropylene media and core up to 80 °C (aqueous service, forward flow). Cotton media with stainless-steel core typically up to ~160 °C. Glass-fibre media with stainless-steel core typically up to ~200 °C in liquid service.
• GAC Core Variant Operating Temperature: Up to 45 °C in compatible aqueous service. Actual operating limits are subject to the granular activated carbon grade, sealing materials, flow conditions and fluid chemistry.

• Industrial Process Water: Sediment reduction in make-up, rinse and wash streams; used as guard filtration ahead of pleated or polishing cartridges to extend downstream filter life and stabilise system cleanliness.
• RO / EDI Pretreatment: Particulate control to minimise membrane fouling, stabilise differential pressure (ΔP) and support reliable operation in desalination, ultrapure water and high-purity water systems.
• Marine and Offshore Watermakers: Pretreatment of seawater and brackish-water feed streams to reduce sand, silt, rust and suspended solids before high-pressure pumps and RO membranes, helping to minimise fouling, stabilise system differential pressure and extend membrane service life.
• Metal Finishing and Plating: Removal of fines, rust, scale and particulate matter from plating baths, parts washers and recirculating loops; media and core selection must align with process chemistry and temperature.
• Chemical and Coatings: Bulk particulate reduction during blending, recirculation and transfer of compatible fluids; yarn, core and elastomer compatibility must be validated for solvent or additive exposure.
• Food and Beverage Utilities: Prefiltration of incoming utility water, CIP rinse streams and non-sterile process water; food-contact-compliant variants available where required.
• Well Water and Groundwater: Turbidity reduction and removal of sand, silt and suspended solids in commercial and industrial water-conditioning systems.