Suction filters

Air breathers

Return-line filters

Low pressure filters

Medium pressure filters

High pressure filters

Duplex filters

Maintenance indicators

Filter elements

Oil care

Air cleaner systems

Use in potentially explosive areas

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Industrial Filtration


MAHLE   /   Maintenance indicators

Maintenance Indicators

Filter elements can only be used with optimal economy if their ability to retain contamination is fully utilized without risk. Mechanical and electronic sensors integrated into the filters or retrofitted react to continuous changes in pressure resulting from changes in the degree of contamination. These changes are then indicated via pressure gauges or visual and optoelectrical switches, depending on the version used. Negative pressure is registered for suction filters, differential pressure for pressure filters, and dynamic pressure for return-line filters. This enables the operator to determine the optimal time to change the filter elements without entailing any risk.


Maintenance indicators  
Electronic maintenance indicators PiS 3300-2.9 2SP LED  





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