Electrically powered crimp tools are described. Also described are methods of operating the tools and methods of crimping. The tools include a housing, an electric motor, a roller screw assembly, and a jaw assembly. In particular versions of the tools the jaw assembly includes a cam linkage member that is manually displaced by a user to more easily open the jaws after performing a crimp.

A working element operable to expand an end of a tube includes a main body configured to rotate about an axis, a plurality of roller supports movably coupled to the main body, the roller supports movable relative to the main body between a retracted position and an expanded position, and a plurality of rollers coupled to the roller supports such that a distance between a first roller of the plurality of rollers and a second roller of the plurality of rollers increases when the roller supports move toward the expanded position. The rollers are configured to be inserted into the end of the tube when the roller supports are in the retracted position, and the rollers are engageable with an inner circumference of the tube when the main body rotates about the axis to expand the end of the tube.

A working element operable to expand an end of a tube includes a main body configured to rotate about an axis, a plurality of roller supports movably coupled to the main body, the roller supports movable relative to the main body between a retracted position and an expanded position, and a plurality of rollers coupled to the roller supports such that a distance between a first roller of the plurality of rollers and a second roller of the plurality of rollers increases when the roller supports move toward the expanded position. The rollers are configured to be inserted into the end of the tube when the roller supports are in the retracted position, and the rollers are engageable with an inner circumference of the tube when the main body rotates about the axis to expand the end of the tube.

A method of identifying a leak around a fitting in a tubing system includes connecting a source of heated air to an inlet of the tubing system, inspecting segments of the tubing system using a thermal detector, identifying segments of the tubing system that are warmer than other segments of the tubing system, and following the warmer segments of the tubing system to identify the leak around the fitting.

A method of identifying a leak around a fitting in a tubing system includes connecting a source of heated air to an inlet of the tubing system, inspecting segments of the tubing system using a thermal detector, identifying segments of the tubing system that are warmer than other segments of the tubing system, and following the warmer segments of the tubing system to identify the leak around the fitting.

In a method of manufacturing a measuring tube of a fluid measuring device, a tubular semi-finished product having a through-opening extending in a longitudinal direction (L) of the tubular semi-finished product is provided, a circumferential wall of the tubular semi-finished product having at least one waveguide area which, after completion of the measuring tube, forms a waveguide for surface acoustic waves of an acoustic measuring device, and the waveguide area extending along a longitudinal direction (L) of the tubular semi-finished product and from an outer surface to an inner surface of the tubular semi-finished product. The tubular semi-finished product is inserted into a forming tool, and at least one mandrel is inserted into the through-opening, an outer geometry of the mandrel corresponding to an inner geometry of a fluid channel of the measuring tube to be formed from the through-opening. In a forming step in which a pressing force (F) is applied to at least one axial center section of the semi-finished product, at least the center section is plastically deformed, the through-opening being formed into the fluid channel. Finally, the mandrel is removed.

In a method of manufacturing a measuring tube of a fluid measuring device, a tubular semi-finished product having a through-opening extending in a longitudinal direction (L) of the tubular semi-finished product is provided, a circumferential wall of the tubular semi-finished product having at least one waveguide area which, after completion of the measuring tube, forms a waveguide for surface acoustic waves of an acoustic measuring device, and the waveguide area extending along a longitudinal direction (L) of the tubular semi-finished product and from an outer surface to an inner surface of the tubular semi-finished product. The tubular semi-finished product is inserted into a forming tool, and at least one mandrel is inserted into the through-opening, an outer geometry of the mandrel corresponding to an inner geometry of a fluid channel of the measuring tube to be formed from the through-opening. In a forming step in which a pressing force (F) is applied to at least one axial center section of the semi-finished product, at least the center section is plastically deformed, the through-opening being formed into the fluid channel. Finally, the mandrel is removed.