Hi-Lo Welding Gauge – PTA WG01
The Hi-Lo Welding Gauge – PTA WG01 helps pipe fitters and welding inspectors measure internal pipe alignment during weld preparation and inspection. Accurate alignment checks reduce the risk of radiographic rejects and improve overall weld quality. By identifying misalignment early, operators can correct fit-up issues before welding begins.
Use the gauge to measure internal pipe misalignment both before and after alignment. This helps confirm that pipe sections sit correctly during fit-up. As a result, welders can maintain proper joint preparation and reduce the chance of costly repairs later in the process.
The gauge also measures several other important dimensions used in pipe welding. It checks root gap, bevel angle, pipe wall thickness, and weld cap height. These measurements help ensure the joint preparation follows the Welding Procedure Specification (WPS). In addition, accurate measurements help prevent common welding defects such as lack of root fusion or excessive reinforcement.
Another useful feature is the ability to measure socket weld gaps and fillet weld sizes. Because of this versatility, the gauge works well across many pipe fabrication and inspection tasks. Welders can use it during fit-up, while inspectors can rely on it for quality checks during and after welding.
The tool also doubles as a way to verify pipe wall thickness and weld reinforcement height, giving inspectors more control when checking finished welds. This helps maintain consistent weld profiles and ensures welds meet specified tolerances.
Manufacturers build the Hi-Lo Gauge from durable stainless steel. The strong construction resists corrosion and handles regular workshop or field use. Clear measurement markings allow quick readings. One side displays inch measurements, while the opposite side shows metric measurements, making it convenient for different standards.
The gauge satisfies common fit-up codes including ASME, ANSI, API, and Military specifications, helping ensure welding work meets strict industry requirements.
