Importance of filtration in compressed air line

Compressed Air Systems and the Importance of Filtration in Industrial Applications

Compressed air systems play a vital role across a wide range of industries, from food and pharmaceutical production lines to petrochemical plants, automotive manufacturing, and steel industries. The quality of compressed air is one of the most critical factors influencing both equipment performance and final product quality. For this reason, the use of standard compressed air filters to remove dust particles, moisture, and oil is of paramount importance.

Why Is Filtration Essential in Compressed Air Lines?

• Equipment Protection: The presence of solid particles and oil in compressed air accelerates wear and tear of compressors and downstream equipment.

• Final Product Quality: In sensitive industries such as pharmaceuticals and food processing, even trace contamination can adversely affect product quality.

• Reduced Maintenance Costs: Proper filtration significantly extends the service life of compressors and dryers, minimizing repair and maintenance expenses.

• Compliance with Standards: Many industries are required to comply with ISO standards governing compressed air quality classes.

Types of Compressed Air Filters

Compressed air filters are manufactured in various types and grades depending on the nature of contaminants and the required level of purification:

🔹 Particulate Filters

• Remove dust, pipe corrosion particles, and solid contaminants.

• Typically installed at the compressor outlet or at the system inlet.

🔹 Microfilters

• Capture very fine particles and suspended liquids.

• Filtration grades down to 1 micron and above.

🔹 Activated Carbon Filters

• Remove oil vapors and residual hydrocarbons.

• Widely used in sensitive industries such as pharmaceuticals and food processing.

• Oil vapor content reduced to as low as 0.003 mg/m³ in accordance with ISO 8573.

🔹 Coalescing Filters

• Provide combined removal of oil aerosols and fine particulates.

• Suitable for filtering particles in the range of 0.01 to 1 micron.

Compressed Air Filtration Classes According to ISO 8573-1

• Class 1: Particle removal down to 0.01 micron and oil vapor content up to 0.003 mg/m³.

• Class 2: Particles up to 1 micron and oil content up to 0.1 mg/m³.

• Class 3 and 4: Suitable for general-purpose applications and low-sensitivity industries.

Supply of Filters and spare parts by Fidar Compressor

At Fidar Compressor, we supply a comprehensive range of compressed air filters and spare parts for oil-injected screw compressors across various brands. Our product portfolio also includes filters for refrigerated and desiccant air dryers, ensuring complete air treatment solutions tailored to industrial requirements.