Return-line hydraulic filters, sometimes called spin-on filters, are used to clean hydraulic oil or fluid in pressurized hydraulic systems. In-line hydraulic filters are installed on the low-pressure, return line side of a hydraulic system to clean fluid before it returns to the reservoir.
Suction filters and strainers are employed in hydraulic systems to remove contaminants from process fluids. The removal of contaminants is critical to protecting sensitive system components. … As the process fluid flows through the filter or strainer, contaminating particles and pollutants are trapped.