Bag Filters
Bag filter are receptacles through which a liquid is passed in order to remove all particles and impurities from the substance. The material of the bag allows liquid to pass through, but any larger materials are unable to permeate the bag material. Bag filters can be made from a variety of materials and fabrics, including wire mesh, paper, fiberglass, and various synthetic materials.
The permeability of the filter media determines the size of particles whose path is blocked from filtering through the bag. The kind of filter media also determines the speed of flow of the liquid passing through. For example, filter media that allow for the passage of larger particles will have a faster flow rate than filter media that block even the smallest impurity.
Bag filters are used to strain and clean liquids in many different environments. One common use is in hydraulics, where they are used for the filtration of lubrication oils because a large percentage of all system failures are caused impurities present in the hydraulic fluid. Hydraulic power is used in many different machines and mechanisms in industrial, construction, military, agricultural, and automotive industries.