Product Overview
Differences Between Hydrophilic and Hydrophobic Sintered Filter Cartridges:
1. Surface Characteristics and Wettability
Hydrophilic Filter Cartridges: The surface is easily wetted by water (contact angle ≤ 90°), allowing liquid solutions to quickly penetrate, suitable for filtering aqueous solutions.
Hydrophobic Filter Cartridges: The surface is not easily wetted by water (contact angle > 90°) but can be wetted by organic solvents like alcohol. Pre-wetting is required before filtering aqueous solutions.
2. Application Areas
Hydrophilic: Mainly used for liquid filtration, such as in pharmaceuticals, food, and water treatment, where efficient filtration of aqueous solutions is needed.
Hydrophobic: Commonly used for gas filtration or organic solvent filtration, such as air purification and industrial dust removal.
3. Material and Processing Performance
Both types are made from ultra-high-molecular-weight polyethylene (UHMW-PE) and possess excellent chemical stability, resistance to organic solvents, and high mechanical strength.Hydrophilic filters may undergo special surface treatment to enhance hydrophilicity, while hydrophobic filters retain their natural hydrophobic properties.
4. Filtration Principle
Hydrophilic filters rely on capillary action to directly filter liquids efficiently.
Hydrophobic filters require pre-wetting (e.g., with ethanol) to alter surface tension, allowing aqueous solutions to pass through.
5. Regeneration and Maintenance
Hydrophilic filters can be regenerated and restored through backwashing or acid treatment.
Hydrophobic filters, due to strong hydrophobicity, are easier to clean with water to remove surface dust, thereby extending their service life.
Summary:
Selection should be based on the filtration medium (aqueous or organic). Hydrophilic filters are suitable for aqueous solutions, while hydrophobic filters are suitable for gases or organic solvents. The two types are similar in material and processing performance, but their surface treatment and application scenarios differ significantly.
| Parameter | Specification |
|---|---|
| Material | HDPE(high-density polyethylene) PP(polypropylene) |
| Standard Diameters | 2mm to 500mm (Custom sizes available) |
| Standard Thicknesses | 1mm to 100mm (Custom thicknesses available) |
| Filtration Ratings | 1, 2, 5, 10, 20, 40, 60, 100 microns |
| Maximum Operating Temperature | 80℃ (176℉) |
| Maximum Differential Pressure | 12 bar depending on dimensions |
| Porosity | 30% to 45% (Adjustable based on requirements) |
| Surface Finish | Standard or Electropolished |
| Certifications | ISO 9001, Material Certification, FDA Compliance |
Customization Available
Most of our products are custom-manufactured based on customer specifications. We can produce filter discs according to your exact drawings, dimensions, and performance requirements. Our engineering team is available to assist with design optimization for your specific application.
Features & Benefits
Superior Corrosion Resistance
Plastic material provides excellent resistance to corrosive media, including acids, alkalis, and salt solutions.
High Temperature Stability
Maintains structural integrity and filtration performance at temperatures up to 400°C (752°F).
Precise Pore Size Control
Available in multiple micron ratings from 1 to 100 microns for exact filtration requirements.
Mechanical Strength
High structural integrity allows for use in high-pressure applications up to 40 bar (580 psi).
Customizable Dimensions
Available in diameters from 1mm to 500mm with custom thicknesses to meet specific requirements.
Uniform Porosity
Consistent pore structure ensures reliable filtration performance and predictable flow rates.
Versatile Industrial Applications
Plastic filter are widely used in food and beverage, pharmaceuticals, chemicals, petrochemicals, and wastewater treatment. They handle applications like liquid and gas filtration, cryogenic gas processing, and corrosive media separation.
With high filtration capacity, chemical and temperature resistance, and easy maintenance, they are ideal for reliable and efficient industrial filtration.
