LFX-CBIG™ Big Blue High-Flow Filter Cartridges

• Media and Construction: LFX-CBIG-MB™ uses graded-density melt-blown polypropylene depth media, thermally bonded and fully binder-free to minimise extractables and provide stable pressure behaviour throughout the service life. LFX-CBIG-SW™ uses precision-wound polypropylene yarn on a rigid polypropylene core for higher-load, coarser or more viscous particulate service; cotton, rayon or fibreglass winding materials can be supplied on request for specialised chemical or elevated-temperature applications. All wetted parts in the standard series are polypropylene for broad aqueous chemical compatibility.

• Nominal Retention Ratings: Melt-Blown (MB): 1, 5, 10, 20, 50, 100 µm. String-Wound (SW): 0.5, 1, 5, 10, 20, 30, 50, 75, 100, 150 µm (performance varies with yarn type and winding density).

• Nominal Lengths: 10 inch and 20 inch formats (≈254 mm and ≈508 mm), Big Blue class.

• Outside / Inside Diameter: Nominal OD ≈114 mm (4.5 inch Big Blue format); ID ≈28 mm (≈1.1 inch).

• End Style: DOE (double open end) with Big Blue-standard end gaskets.

• Elastomer Options: EPDM (standard). Silicone, NBR (Buna-N) and FKM (Viton®) available by model or specification.

• Flow Direction: Outside-to-inside depth-filtration flow path across all polypropylene depth-media configurations.

• Differential Pressure and Structural Limits: Recommended change-out at approximately 1.4–2.4 bar (clean-water reference or process-defined limit). Maximum continuous forward ΔP up to ≈2.4 bar at 25 °C.

• Municipal and Commercial POE / Whole-Site Filtration – Bulk sediment reduction for buildings, campuses, central utility rooms, and food-service facilities using standard Big Blue–style filter housings. Ideal for improving clarity and reducing particulate load at point of entry.

• RO and EDI Pretreatment – High-capacity particulate control upstream of RO membranes and DI/EDI units to minimise fouling, stabilise feed pressure, and extend downstream element life.

• Food and Beverage – Bulk-water clarification in food and beverage manufacturing plants, including ingredient water, rinse water, and utility water used in bottling, brewing, fermentation, and general processing stages.

• Manufacturing Utilities and Rinse Water – Clarification of cooling loops, rinse lines, and wash systems on plant skids; commonly used as a guard stage before finer pleated filters or membrane polishing.

• Metal Finishing, Plating, and Parts Washing – Coarse to fine sediment reduction in make-up water and bath overflow lines to protect pumps, spray nozzles, and recirculating systems from scale, rust, and suspended solids.

• Cooling Towers and Side-Stream Filtration – Reduction of suspended solids to improve heat-exchange efficiency, protect pumps, and help reduce blowdown frequency in commercial and light-industrial cooling systems.

• Well Water and Groundwater Treatment – Turbidity, sand, and silt removal in commercial well systems, booster sets, and prefiltration stages for groundwater-derived supplies.

• Electronics and General Industrial Pretreatment – Upstream sediment control prior to fine cartridge or membrane polishing.