Abstract: A hydraulic expander assembly for installing a tube repair sleeve in a tube at a selected location relative to a tube defect or a tube support. The apparatus includes a hydraulic expander having at least one expandable bladder and adapted to receive the sleeve thereon. The expander includes a stud having at least one conduit formed therein and a plurality of slidable expandable bladders mounted on the stud for radial expansion, each of the bladders in fluid communication with the conduit. A detector is mounted on the expander and responsive to tube supports and defects in the tube. Finally, a control system is electrically connected with the detector and operative to control the expansion of the bladder in response to signals received from the detector.

Abstract: A filter adapter and filter cartridge for a filter assembly for removing particulate matter from an aqueous flow by means of a filter vessel having a support housing, a removable top, an input port for the aqueous flow, an exit port for the aqueous flow and an internal seal. The filter assembly includes a filter adapter configured similarly to the housing and sized to be substantially entirely received within the housing and sealingly engage the internal seal of the housing. A filter cartridge is configured similarly to the filter adapter and is sized to be substantially entirely received within the filter adapter and to simultaneously engage the filter vessel top and sealingly engage the filter adapter outlet. A biasing spring is located between the filter cartridge and the filter adapter.

Abstract: A filter for removing hazardous particulate matter from an aqueous flow. The filter includes a rigid support housing having an input port for the aqueous flow, an exit port for the aqueous flow, a brace to securingly engage a filter vessel for the aqueous flow, an internal seal and an external seal, and a disposable filter cartridge configured similarly to the housing and sized to be substantially entirely received within the housing and sealingly engage the internal seal and having a filter medium that extends across a path from the input port to the exit port when received in the housing, the cartridge having a terminal seal located to sealingly engage the cartridge to the aqueous flow filter vessel outside of the housing when the cartridge sealing engages with the internal seal.