By definition, a custom filter is a device that mechanically removes solids from a flowing liquid or fluid by means of a straining element. Typically, filter particle retention ranges from 1 inch to 40 micron. In addition to removing unwanted materials or substances from the process media, industrial filters are also used primarily to help the contaminants from damaging the downstream equipment such as pumps, condensers, meters, regulators, steam traps, and many more. Custom filters can be made to order and Dynamic Filtration takes pride in providing specialized filters to the Canadian and overseas markets.
A custom filter is usually found at the pump inlets in a vertical piping, while most filters are used in horizontal or inclined piping. Custom filters are also applicable in a horizontal, vertical, or downward pipeline. However, it must be ensured that the position of the collection chamber and the blowdown connection is properly oriented, which is at their lowest position. Filters can be cleaned with the use of a blowdown valve or outright replacement of the filter element. Custom filters are usually equipped with this addition to make it easier to clean.
Also, the filter element can be cleaned without having to shut down the entire flow or to disassemble any part of the piping system. A word of caution though about a common misconception about the use of a custom filter in steam service. In most cases, the two of them will do comparably in such application. It’s critical to let the filter manufacturer know when ordering a custom filter for steam service. This is to further allow for any modification of the bottom of housing to accommodate a blowdown connection to easily flush out the collected debris by simply opening the valve. So, overall specifying a filter requires complete understanding and knowledge of the piping system where it should be installed.