HI-LO FIT-UP Welding Gauge

HI-LO Fit-Up Welding Gauge

The HI-LO Fit-Up Welding Gauge is a precision inspection tool engineered to ensure accurate pipe alignment and weld quality in fabrication, pipeline, and structural welding applications. Featuring both imperial and metric scales, it provides fast, reliable measurement of essential welding parameters, helping professionals achieve high-quality, compliant welds.

This versatile gauge measures pipe misalignment (internal and external), crown height (0–1/4”), fillet leg size, pipe wall thickness, and porosity hole size (1/8” and 1/16”). It also includes a defect scale for assessing the number of imperfections per inch — allowing inspectors and welders to identify alignment and weld defects early, preventing costly rework.

Compact, durable, and easy to use, the HI-LO Gauge is an essential tool for pipefitters, welding inspectors, and QA/QC engineers, ensuring consistent fit-up accuracy and weld integrity in both workshop and field environments.

Key Features

• Dual imperial & metric scales for universal application

• Crown height range: 0–1/4″

• Measures pipe misalignment, internal & external joints

• Checks fillet leg height and pipe wall thickness

• Porosity comparator: 1/8” and 1/16” hole sizes

• Includes defect scale for assessing porosity frequency

• Precision-engineered construction for repeatable accuracy

• Compact and portable – ideal for site and workshop use

Typical Applications

• Pipefit-up inspection and weld alignment checks

• Quality assurance and welding inspection (QA/QC)

• Fabrication and pipeline construction

• Shipbuilding, oil & gas, and heavy industry