The use of HNPM micro filters
HNP Mikrosysteme strongly recommends the use of a filter with a pore size or mesh width of 10 µm to protect the micro annular gear pump.
They offer a range of filters, including straight inline filters, inline T-filters, and inlet filters made from various materials with different filter surfaces. These HNPM filters can be ordered separately as a single product. Suurmond also uses them to protect pumps other than HNPM micro pumps.
A filter monitoring sensor can be implemented to detect impending maintenance or cleaning of the filter, as well as a closed supply line. In the “T-version”, the sensor can be directly adapted, while for straight filters, it can be integrated by adding a separate mounting block.