Bagged filter cartridge, system and method

A method of filtering fluid comprising:

• inletting unfiltered fluid into a containment bag;
• venting air from the containment bag;
• containing a filter media pack in the containment bag, the filter media pack comprising a hollow interior that has an opening at one end and is closed to fluid flow at a second end opposite the one end;
• filtering the unfiltered fluid through a filter media pack contained in the containment bag to produce filtered fluid;
• and
• outletting filtered fluid from the filter element and through said opening and through the containment bag;
• wherein the containment bag includes an inlet fitting sealingly attached to the containment bag for inletting unfiltered fluid, a vent fitting sealingly attached to the containment bag for venting the containment bag, and an outlet fitting sealing attached to the containment bag for outletting filtered fluid;
• the method further comprising;
• locating the containment bag in a carrier bag;
• placing the carrier bag containing the containment bag in a housing;
• connecting the inlet, vent, and outlet fittings to inlet, vent, and outlet conduits respectively;
• supporting fluid pressure in the bag when in use with the housing;
• replacing the filter media pack by disconnecting the inlet, vent, and outlet fittings and removing the carrier bag containing the containment bag from the housing with unfiltered fluid still remaining in the bag thereby providing from cleanly removal from the housing;
• and
• connecting a new containment bag comprising another filter media pack and having inlet, vent, and outlet fittings to the inlet, vent, and outlet conduits respectively.

A method of filtering fluid comprising:

• providing a filter cartridge having an inlet port and an outlet port;
• providing a carrier bag for containing the filter cartridge, the carrier bag having an outlet;
• placing the filter cartridge within the carrier bag, with the outlet port arranged to allow passage of filtered fluid to pass through the outlet port out of the carrier bag;
• placing the carrier bag with the filter cartridge therein in a housing;
• providing unfiltered fluid to the inlet port of the filter cartridge, filtering the fluid through the filter cartridge, and having the filtered fluid exit the carrier bag through the outlet;
• and
• utilizing the carrier bag to remove the filter cartridge from the housing.

A housing for containing and supporting a filter cartridge including a filter element housed in a bag, an inlet fitting projecting from the bag for receiving inlet fluid to be filtered by the filter element, and a vent fitting projecting from the bag, the housing comprising:

• a support housing portion having an open end;
• and
• a lid portion selectively closing the open end of the support housing, the lid portion including a split lid including at least two portions, the two portions being dividable and having an assembled configuration;
• wherein in the assembled configuration the two portions together define an inlet aperture receiving and maintaining in position the inlet fitting of the filter cartridge.