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How to distinguish different types of glass fiber sintered filter elements

2025-07-09 Share:

Different types of glass fiber sintered filter elements can be distinguished through multiple dimensions, including material, pore size, structure, application field, performance characteristics, etc.

1. Material

Pure glass fiber: Made of pure glass fiber, suitable for general filtration needs.

Composite material: Add other materials (such as activated carbon, metal powder, etc.) to glass fiber to enhance specific properties, such as adsorption capacity or conductivity.


2. Pore size

Microporous filter element: The pore size is between 0.1 μm and 10 μm, suitable for high-precision filtration, such as pharmaceutical and electronic industries.

Medium-pore filter element: The pore size is between 10 μm and 100 μm, suitable for general filtration needs, such as water treatment and air filtration.

Macroporous filter element: The pore size is greater than 100 μm, suitable for coarse filtration, such as pre-filtration and primary filtration.


3. Structural form

Cylindrical filter element: The most common form, suitable for standard filters.

Flat filter element: Suitable for specific filtration equipment, such as flat filters.

Roll filter element: Made of multiple layers of filter material, suitable for high-capacity filtration.

Pleated filter element: By folding, the filter area is increased and the filter efficiency is improved. It is suitable for occasions with limited space.


4. Application fields

Liquid filtration: used for water treatment, oil filtration, chemical filtration, etc.

Gas filtration: used for air filtration, flue gas purification, compressed gas filtration, etc.

Special applications: such as high-temperature filtration, corrosive medium filtration, food and beverage filtration, etc.


5. Performance characteristics

High temperature resistance: suitable for high temperature environment, such as combustion furnace, high-temperature gas filtration.

Corrosion resistance: suitable for corrosive media, such as acid and alkali solutions, chemicals.

High mechanical strength: suitable for high pressure or high flow rate environment, such as hydraulic system, compressor.

Low resistance: suitable for occasions requiring low pressure drop, such as ventilation system, air treatment.


6. Surface treatment

Untreated: The filter element in its original state is suitable for general filtration needs.

Hydrophilic treatment: The surface is treated with good hydrophilicity, suitable for water treatment.

Hydrophobic treatment: The surface is treated to have good hydrophobicity, suitable for gas filtration.

Antistatic treatment: The surface is treated to reduce the electrostatic effect, suitable for handling dry gas or fine particles.


7. Manufacturing process

Dry sintering: Made by drying and high-temperature sintering, suitable for occasions requiring high mechanical strength.

 

Wet sintering: Made by wet molding and sintering, suitable for occasions requiring high porosity.