Coalescing Filter

The Numatics Delta 901 Series Coalescing Filter offers premium filtration for applications which require high flows. The Numatics Delta 901 Series coalescing filters use a borosilicate glass fiber to remove contaminant from air lines. Air flows from the inside to the outside of the element through a converging/diverging pore structure, trapping contaminant particles in the media (not just on the surface) and forcing liquids to form into larger drops and drain to the bottom of the bowl. Numatics filters are used to remove hydrocarbon, oil, liquid water, rust, and more.

The science behind the Coalescing Filter

Air flows from the inside to the outside of the element through progressively larger openings in
the media. As contamination moves through the element, solid particles are trapped and liquids
are formed into large droplets. As the air exits the element, surface tension holds the liquids and allows them to drain to the bottom.

The Numatics 0.01 micron borosilicate glass fiber element, shows deep, tortuous paths and large air pockets which provide high performance contaminate removal and longer life. The contamination contains hydrocarbon (black), oil (opaque drops), and metal fragments (shiny spots). With Numatics elements like the one on the left installed in your system, the contamination on the right won’t get to where it can cause damage. Your system lasts longer and costs less