String Wound Filter Cartridge
Wire Wound Long Fiber Filter Element Pp Skeleton Filter Element. Water filter cartridge production. The string wound filter cartridge is a technically mature and widely used depth filtration element. Its core feature lies in its unique outer-coarse, inner-fine (graded density) structure, which, through combinations of different materials and winding processes, effectively removes suspended solids, particles, and other impurities from liquids.Water filter cartridge production. Wire Wound Long Fiber Filter Element Pp Skeleton Filter Element.
| Material | Key Features | Typical Use |
|---|---|---|
| Polypropylene (PP) | Most common; good acid/alkali resistance; low cost. Not for high temp (≤60°C with PP core). | Water treatment, plating solutions, chemical solvents. |
| Degreased Cotton | FDA-grade; natural, hydrophilic, good compatibility. Temp ≤120°C with stainless steel core. | Food & beverage, pharmaceuticals, high-purity water. |
| Fiberglass (GF) | High temp resistance (200–300°C, metal core up to 450°C); excellent chemical compatibility. | Hot oils, heat transfer fluids, corrosive liquids. |
Key Applications
Water treatment: Pre-filtration for RO systems, removal of sand, rust, sediment.
Food & beverage: Clarification of wine, beverages, syrup, edible oils.
Electronics: Filtration of plating solutions, ultra-pure water.
Petrochemical: Hydraulic oil, lubricants, solvents, acids/alkalis.
Pharmaceutical: Pre-filtration of medicinal liquids.
Others: Inks, paints, cutting fluids, adhesives.
Service Life & Replacement
Not fixed; depends on fluid quality, flow rate, filtration rating, and material.
General guideline: Replace every 3–6 months for industrial/commercial use; shorter for residential.
Performance indicators:
Pressure drop (ΔP) exceeds set limit.
Flow rate drops significantly.
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