Coalescing filters – cleaning up air for demanding applications - Atlas Copco Italia

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Coalescing filters – cleaning up air for demanding applications

Coalescing filters are a must when high-quality compressed air is needed. Here is a guide for picking the right one.

20 maggio 2022

Coalescing filters – cleaning up air for demanding applications

Estimated reading time: 5 minutes

Air is not clean – neither the one we breathe nor the compressed air we need for so many industrial applications. The latter contains particulates as well as aerosols and, in the case of oil-injected compressors, oil vapors. These contaminants are often microscopically small but can have a damaging – and costly – impact on the sensitive equipment that uses compressed air. Particulates, for example, are tiny pieces of solid materials, e.g. dust, dirt or small pieces of metal caused by pipe corrosion, that can damage the end product. Aerosols are small droplets of liquid in compressed air that are created from the lubricant, such as oil, and can harm products and people if not properly removed. Vapors consist of any liquids in the compressed air system, like the lubricant, that have been converted to gas. There are applications for which these contaminants do not matter a lot. For example, they are not a major problem when you use compressed air to inflate a tire.

Watch this video to know more about the next generation of filtration solutions

Coalescing filters are a must for high-quality compressed air

However, if high-quality, pure compressed air is required, then you need a filter (or filters) to eliminate those particles, aerosols and vapors. Otherwise, they can pollute the products they come in touch with, for example in the food and pharmaceutical industries, or harm your sensitive equipment. The amount and type of filters depends on the application and the quality of air. One effective way to remove aerosols and particulates is the installation of a coalescing filter. These filters produce cleaner and dryer compressed air by bringing small droplets of liquid together in order to form larger droplets. As these droplets increase in size, they fall from the filter and are caught in a moisture trap. Caution: Not all filters remove all contaminants. For example, coalescing filters are not effective in getting rid of vapors. For removing particulates and aerosols, however, they are often the right choice – especially the innovative UD+ coalescing filter from Atlas Copco.

UD+: two-in-one

This new system combines two filtration steps offered by Atlas Copco’s DD+ and PD+ filters into a single unique technology. Thanks to its design and the media used, a UD+ filter achieves an air purity that is equal to that obtained by the two conventional filters in line. But it not only meets the air quality standards of many applications, it also saves money. The unique Nautilus filter technology has a pressure drop that is 40% lower than that of a conventional filter line combination, which in turn results in 40% higher energy efficiency. And, because two filtration concepts are combined in one filter, it reduces the required installation space, which makes UD+ oil coalescing filters ideal for applications in tight spaces.

Ask an air system professional about the best solution for your needs.

I filtri svolgono un ruolo fondamentale nel trattamento corretto dell'aria compressa. In questo e-book interattivo sui filtri dell'aria compressa imparerai tutto sui contaminanti e quali filtri offrono una protezione ottimale.

Hai domande specifiche o desideri discutere quale filtro è la soluzione giusta per la tua azienda? Fai clic sul pulsante qui sotto per entrare in contatto con un esperto!

What are the main types of compressed air contamination?

A number of decisions must be made when installing a compressed air system for it to provide the right air quality, since compressed air can contain some harmful contaminants like water vapor and oil.

Filtri dell'aria

Una vasta scelta di soluzioni di filtrazione per aria compressa con diversi tipi di filtro e gradi di filtrazione. Supportata dalla nostra esperienza nella conoscenza delle applicazioni.

Compressori d'aria UD+ Filtri H

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Coalescing filters – cleaning up air for demanding applications

Coalescing filters are a must when high-quality compressed air is needed. Here is a guide for picking the right one.

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Coalescing filters – cleaning up air for demanding applications

Estimated reading time: 5 minutes

Watch this video to know more about the next generation of filtration solutions

Coalescing filters are a must for high-quality compressed air

UD+: two-in-one

Condividi su

Condividi su

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