V-WAC Weld Gauge — GAL Visual Weld Acceptance Gauge
The GAL V-WAC weld gauge supports visual weld inspection by measuring undercut, surface pits, crown height and outside misalignment. It also provides surface-porosity comparison features. Justram is an authorized GAL Gage distributor.
Visual weld profile checks
The stainless-steel V-WAC Single Weld Gauge combines depth and height measurement with surface-porosity comparison. Its pointer and locking screw help capture a reading from an accessible weld surface.
Fractional-inch model specifications
| Model reference | GAL CAT 5, fractional-inch V-WAC |
|---|---|
| Undercut and pit depth | Up to 1/4 in |
| Weld crown height | Up to 1/4 in |
| Scale graduations | 1/64 in increments |
| Construction | Stainless steel |
GAL also offers decimal and metric V-WAC versions with different ranges and graduations. Specify the required version when enquiring; the fractional-inch specifications above do not describe every model.
Measure and compare surface features
- Check weld reinforcement and outside misalignment using sound base material as the reference.
- Measure accessible undercut or pit depth with the pointer.
- Compare surface-pore size using the gauge’s reference openings.
- Assess the distribution of visible porosity along a measured weld length.
Compare results with the applicable drawing and inspection criteria. The gauge does not establish acceptance limits or detect subsurface defects. Scale increments are not a calibration or accuracy guarantee; include any required tolerance and certification in your enquiry.
Choose the right inspection tool
For deeper pits, compare the GAL CAT 5A Pit Depth Gauge. For bevel angles and fillet-weld dimensions, see the Bridge Cam weld gauge. Browse our pipe fit-up and inspection tools for related equipment.




