UD+ “Ultimate” Coalescing Air Filter By Atlas Copco
Combines two filtration steps (DD+ and PD+) into one.
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With the Atlas Copco Ultimate UD+, you can combine two filtration steps. By completing all of your filtration in one stop, you can save money and space. This system removes particulates, aerosols, and moisture in one step.
Combines two filtration steps (DD+ and PD+) into one.
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Filtration can be the difference between your system shutting down and working correctly. Proper filtration is necessary to remove particulates and vapors in your compressed air. If these materials run rampant in your system, they can destroy your equipment from the inside out. In-line filters are there for the sole purpose of removing these contaminants.
Traditional filtration systems have both a particulate filter and a coalescing filter to remove contaminants. The particulate filter comes first to catch the bigger particles and materials floating through the air. Coalescing filters come afterward to catch the final water vapors missed by the dryer and any oil condensation. This double-layer filtration system is a go to for many people.
With Atlas Copco’s UD+ filters, you can combine these two steps into one. You can filter both particulates and condensates out of your compressed air in one stop. Skip the hassle of lining up your filtration and get a filter where it is already set up for you.
The UD+ series combines two filtration steps (DD+ and PD+) into a unique technology that allows you to meet the high-quality requirements of various applications while providing ultimate energy savings. They save you not just money but also space by eliminating the need for a second filter.
At the same time, these two-in-one coalescent filters protect your equipment and processes by efficiently reducing oil aerosol, wet dust, and water droplets in your compressed air stream. The UD+ series ensures a lower pressure drop than a conventional filter combination, which results in energy savings. Thanks to the thick filter package, these filters also provide an air purity equal to that obtained using two separate filters in a row.
With a patented drainage technology, the UD+ series prevents oil droplets from re-entering the air stream.
The size of your compressed air filter is determined by the size and type of particles being removed. You want to be able to remove the particles in descending size so that you do not clog the filter elements. The bigger particles will get caught as the air passes through, and smaller and smaller particles will make it through.
Consider a few things when you are looking to buy an air filter. These will be the guiding principles for selecting your compressed air filters.
This is the percentage of dust removed or extracted from the air. So, a filter sized to 1 micron would have a 99.8% extraction efficiency because .2% of the particles that size pass through the filter.
Flow rate is the amount of air that passes through the filter in a given period, usually measured in Cubic Feet per Minute (CFM). Your filter size has to match your flow rate, so if you have a more significant flow, you will need larger compressed air filters. If your flow rate is too much or too low for your filter, it can cause unwanted pressure spikes and drops.
Flow resistance refers to the buildup of dust and debris in your filter over time. As this builds up, more dust will accumulate, causing pressure drops and restricting your compressed air flow. Stay on top of this by routinely replacing your filter elements and preventing extreme buildup.
These are the main concerns you should have when determining your filtration sizing. Beyond that, there really isn’t much else to remember besides pressure drops, and all that takes is a simple calculation.
Want to learn more about compressed air filters? Check out our guide on compressed air filters here.
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