To choose the right high-precision pleated filter cartridges for liquid filtration, consider the following factors based on industry standards and application requirements:
1. Micron Rating and Filtration Efficiency
Precision Range: Select cartridges with micron ratings tailored to your needs. For example:
-Ultra-fine filtration (0.04–0.45 µm): Use polyethersulfone (PES) pleated cartridges for sterile applications like pharmaceuticals or biotechnology .
-General high precision (0.5–5 µm): Polypropylene (PP) pleated cartridges are cost-effective for pre-filtration, chemicals, or food processing.
-Efficiency: Look for cartridges with >99.98% particle retention, such as SoluGET’s APP/NPP series or PES membranes.
2. Material Compatibility
-Polypropylene (PP): Ideal for chemical resistance, FDA compliance, and affordability. Suitable for water treatment, solvents, and acidic/alkaline fluids.
-PES or Glass Fiber: Opt for PES membranes for high-temperature sterilization (up to 123°C) or glass fiber for viscous/colloidal liquids in petrochemical or pharmaceutical industries.
-Hybrid Designs: Some cartridges combine PP with activated carbon or glass fiber layers for multi-stage filtration (e.g., hydrocarbon removal) .
3. Construction and Integrity
-Pleated Design: Increases surface area for higher dirt-holding capacity and flow rates.
-Absolute vs. Nominal Ratings: Choose absolute-rated cartridges (e.g., 0.22 µm PES) for critical applications like vaccine filtration.
4. Operational Conditions
-Temperature and Pressure:
PP cartridges typically handle ≤80°C , while PES withstands steam sterilization (121°C) .
Verify maximum pressure limits (e.g., 2.8 bar for PES) .
-Flow Rate: High-flow PP pleated cartridges support up to 80m³/h(40’’), ideal for industrial systems.
5.Application-Specific Features
-High-Viscosity Fluids: Use PES cartridges with graded pore structures to prevent clogging.
-Oil/Water Separation: PP depth cartridges with hydrophobic properties
-Prefiltration: Combine PP pleated cartridges (1–10 µm) with final PES/GF membranes for extended lifespan.
Example Recommendations:
-Pharmaceuticals: PES pleated cartridges (0.1 µm, integrity-tested).
-Chemicals: PP pleated cartridges (1–50 µm, chemical-resistant).
-Food/Beverage: FDA-compliant PP cartridges with thermal bonding.
