Understanding the impact of air compressor filtration on your compressed air system

Compressed air systems play a crucial role in various industrial applications, from construction and manufacturing to food processing and healthcare. The quality of compressed air these systems produce directly impacts their reliability and efficiency.

One of the core components of an air compressor is the compressor filtration, which prevents impurities such as oil, moisture, and solid particles from contaminating the compressed air.

But how much of an impact does the filtration make? How do you choose the right one? And how do you know when it is time to replace your compressed air system’s filter? We will answer all those questions and more in this article.

Anglian Compressors has been a premier distributor of air compressors and components for renowned manufacturer Atlas Copco since 1977, so you can trust us for honest and accurate advice. Do not hesitate to call us if you have any questions regarding your particular compressed air system. Keep reading below to learn more about the ins and outs of air compressor filter cartridges.

Air Compressor inline Filters Explained

Filters prevent contaminants present in the air from entering your compressed air system. Atmospheric air can contain impurities that not only damage your compressor but also the equipment that uses the compressed air. As your compressor draws in air, the filter can remove impurities such as moisture, dust, oil aerosols, and other particulate matter to protect your air compressor and industrial equipment from damage.

The following explains the role of air compressor filter cartridges in more detail:

Contaminant Removal

Line filters primarily serve to remove contaminants from the air being drawn into your compressor before it reaches the compression chamber. Through processes such as coalescence, adsorption, and mechanical filtration, filters sift out particles ranging in size from sub-micron to coarse dust, to ensure your compressor produces clean, dry, and impurity-free air.

Equipment Protection

Contaminated air can cause unnecessary and premature wear and tear on many of your air compressor’s critical components including seals, valves, and pneumatic tools. Moreover, the presence of moisture in compressed air systems can lead to corrosion. You can safeguard your equipment by installing an appropriate filter while maximising it’s lifespan.

Maintenance of Air Quality Standards

Ensured compressed air purity is essential in industries such as pharmaceuticals, food processing, and electronics assembly. Inline filters can help you comply with relevant regulations and ensure a high-quality end product by removing contaminants from the air before it is compressed.

How Inline Filters Impact Energy Efficiency

Besides enhancing the purity of compressed air, inline filters can also improve the energy efficiency of your compressed air system. Contaminants within your system can restrict airflow, forcing your air compressor to use more energy to maintain the desired pressure level. By ensuring the air pathways in your system remain free of obstructions, filters can help optimise your compressor’s performance, reducing your energy usage and operating costs.

Factors That Impact the Performance of Filtration

Several factors can influence the effectiveness of air compressor filter cartridges, notably:

Filtration Efficiency

The filtration efficiency refers to how well the filter can remove contaminants from the air. Usually, the filtration efficiency is expressed as a percentage of particles captured at a specific size range. The higher the filtration efficiency, the better your compressed air system will be protected against impurities.

Pressure Drop

If air faces resistance as it passes through the filter, your system will experience a drop in pressure. Balancing filtration efficiency with acceptable pressure drop levels is essential for minimising energy consumption, and maintaining optimal airflow.

Service Life

The service life of a filter depends on various factors, including the type and concentration of contaminants, airflow rates, and operating conditions. Regular maintenance is crucial – you will need to replace your filter element periodically, to ensure a consistent performance.

Frequently Asked Questions

We are only a phone call away if you need more information to help you choose the right filter. In the meantime, here are the answers to some of our customers’ most frequently asked questions:

Does quality matter when it comes to choosing an inline filter?

A quality air compressor line filter finds the sweet spot between top-notch filtration and keeping pressure drop to a minimum. The right mix of filter material matters for tackling different kinds of dirt.

Line filters must be able to handle harsh conditions and pressure changes in compressed air systems. A stainless-steel core gives them the strength and rust protection they need for a long lifespan.

What are the consequences of failing to replace filter elements in a timely manner?

Regularly changing your line filter is key to maintaining air quality and energy efficiency. Your filter could clog up without frequent replacements (usually required annually), decreasing your system’s air pressure. Ignoring this issue can significantly increase your energy bills and CO2 emissions over time.

Compressed air filters rely on delicate channels. Harmful substances like oil can slip through, if they degrade, jeopardising air purity.

How can you tell when it is time for a new air filter element?

Line filters come with service indicators that let you know when the pressure drop goes beyond a set limit. This signals that the filter element is full and needs changing.

With Atlas Copco’s Next-gen inPASS filters, a smart indicator provides detailed information on filter usage, pressure differences, and maintenance needs. It can even send alerts to a remote device for added convenience.

Can you manually inspect and clean the filter?

The breakdown of filtration material happens on a microscopic level, making it impossible to detect with the naked eye. Attempting manual cleaning can damage the delicate fibre layers, leading to poorer performance. Rather than saving money, you may end up with higher costs and compromised air quality.

Do I need to use genuine line filters from the original equipment manufacturer (OEM)?

Non-genuine filter elements that are not tailored specifically for your system will not provide a perfect match. If they are cheaper, it is likely because they are made with inferior materials and have a shorter lifespan. An imperfect fit can lead to leaks and increased pressure drop. Plus, filter cores not built to handle high-pressure differences might collapse during use.

Learn More About Our Range of inline Filters for compressed air systems

Anglian Compressors is proud to be a premier distributor for Atlas Copco, a leading manufacturer of compressed air systems and components, including filters, that are designed in close collaboration with experienced industry experts and research institutes. 

All our Atlas Copco filters are ISO-certified and validated by independent certification bureaus. Furthermore, you can count on our technicians to install and maintain your systems to the highest industry standards.

If you want to learn more about filters, have questions about our product range or need an expert to inspect your system, do not hesitate to give us a call.