Ideal for use before either orbital or manual welding
Does not create a sealed joint, rather it is designed to set tubes in place before welding, allowing weld gasses to escape
Easy to use, and the unique design requires no physical force by the operator during actuation, resulting in a tool which requires minimal training to operate effectively
- Sets tube ends with a consistent protrusion (recessed, flush, or protruding... you name it)
- Centers and locks the tube in the tube hole
- Leaves small gaps between the tube and tube sheet for weld gases to escape
- Approximately five seconds per tube (expansion time)
- Zero operator strain during expansion: all reaction force is absorbed by the tool
- No wall thinning
|The power supply is a self-contained, air operated, closed-loop hydraulic system capable of generating regulated pressures up to 3,000 psi. This pressure is produced by a high-capacity pump unit housed in a portable, lightweight steel frame. The WeldLock power supply is fully interchangeable with the TubePro power supply.||
Gun (Pull Cylinder)
|The gun (pull cylinder) consists of an aluminum, cylindrical high-pressure body and associated high-pressure hose. It is hydraulically driven, with a single acting piston and air return mechanism. The gun is controlled by a recessed button located on the gun handle. The drawbar assembly (see next paragraph), is inserted into the piston assembly. Multiple gun assemblies are available to ensure the optimal force is utilized for a given tool size.||
Drawbar (Mandrel) Assembly
The drawbar/anvil expansion assembly is made up of an all metal expanding segment assembly. When actuated, the assembly sets the tube protrusion, centers and locks the tube in the hole, leaving small air gaps that allow an escape path for weld gases during the fabrication process.
Drawbar Assemblies are available in a variety of configurations to accommodate variable width expansion zones from tubesheet to tubesheet. Tube position (protrusion, flush, recessed) is determined by the configuration of the reaction collar.
- The tool is inserted into the tube until the tube end is in contact with the "protrusion lip" of the tooling anvil
- The face of the anvil is then pressed against the tubesheet
- The trigger on the gun is pressed, actuating the power supply
- The piston retracts, expanding the drawbar assembly inside the tube and tubesheet
- After the desired degree of expansion is achieved (as controlled by the regulated pressure of the power supply), expansion ceases
Standard tool sizes are available for the following tube size range. Additional tool sizes available at request.
- 1/4" OD - 8" OD