BypassFiltration

Bypass filtration, also known as partial flow filtration or kidney loop filtration, is a filtration method used to remove contaminants from a fluid system. Unlike full-flow filtration, where all the fluid passes through the filter, bypass filtration draws only a portion of the fluid from the main system, filters it, and then returns it to the same system. This continuous cleaning process allows for the removal of finer particles and degradation products that might otherwise overwhelm a full-flow filter or accumulate in the system.

The primary advantage of bypass filtration is its ability to maintain a higher level of fluid cleanliness over extended periods. By constantly circulating and cleaning a fraction of the fluid, it can significantly reduce wear and tear on machinery, extend the life of the fluid itself, and improve overall system efficiency. This method is particularly effective in applications where fine particle contamination is a concern, such as in hydraulic systems, lubrication systems, and fuel systems.

Bypass filters typically have a smaller capacity than full-flow filters, as they are designed to handle only a fraction of the total system flow. The flow rate through the bypass filter is usually determined by the pressure drop across the filter and the viscosity of the fluid. The selection of the appropriate bypass filtration system depends on factors such as the system's operating pressure, flow rate, fluid type, and the level of contamination to be removed.