Abstract: A tool for connecting and disconnecting a coupling having a combination of pliers and a wrench. The pliers have a first jaw with extensions which are positioned over the yokes of the first part of the coupling and a second jaw for positioning adjacent the second part of the coupling. The wrench has a third jaw which is slidably attached to the second jaw. The third jaw has extensions which are positioned around the yokes of the second part of the coupling. The pliers of the tool are used to compress the first and second parts of the coupling together. The wrench is used to rotate the second part of the coupling to disconnect or connect the coupling.

Abstract: A tool for connecting and disconnecting a coupling having a combination of pliers and a wrench. The pliers have a first jaw with extensions which are positioned over the yokes of the first part of the coupling and a second jaw for positioning adjacent the second part of the coupling. The wrench has a third jaw which is slidably attached to the second jaw. The third jaw has extensions which are positioned around the yokes of the second part of the coupling. The pliers of the tool are used to compress the first and second parts of the coupling together. The wrench is used to rotate the second part of the coupling to disconnect or connect the coupling.

Abstract: A one-piece extrusion (50) having a flat bottom portion (54) and supporting flat sides (74) is described. The one-piece extrusion (50) is particularly appropriate for use as a header for a heat exchanger in a cogeneration facility or other high pressure vessels. The header (50) is extruded out of steel, stainless steel, or a steel alloy. The flat bottom portion (54) of the header (50) provides a flat surface for drilling apertures (80) and connecting tubes (56) to the header (50), eliminating the need for complicated manufacturing and attachment procedures encountered with the cylindrical headers currently used. The flat bottom portion (54) also provides more surface area for attachment of the tubes (56). The flat sides (74) of the extrusion impart structural support and integrity to the header (50) and allow a greater number of headers to be placed closer together without taking up the space required for typical cylindrical headers.