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Welding Inspection
Instruments & Accessories

Single Purpose HI-LO Welding Gage

Available in Standard or Metric
Internal HI-LO Gauge
4 quick steps check internal alignment
You can check the internal alignment of your fit-up quickly with the G.A.L. HI-LO gauge.

1. Unlock the retaining screw. Press the gauge legs beyond the barrel.

2. Insert the legs (wires) into the root gap space or the two pieces of pipe to be fitted.     Turn the gauge 90°, being careful to apply a constant back pressure to the barrel.
3. Hold the gauge as square as possible with the fitting to obtain an accurate reading.      Lock the retaining screw. Reverse the 90° turn and remove the gauge. You are now  ready to read the increment opposite the red line.
4. When the red line aligns with the 1/32 increment line you have a good internal      alignment and fit-up. Misalignment can be determined from the zero line by      increment markings of 1/16 inch.

Root weld Spacing Gauge

Easy operation determines rootweld spacing.

1. Unlock the retaining screw and insert the gauge interior alignment stops between the two      pieces of pipe to be fitted.

2. Insert the leg with the longer taper into the root gap until it makes contact with both sides of  the gap.
3. Re-lock the retaining screw, remove the gauge and read it.
4. The scale is calibrated in fractional dimensions from 1/32 to 3/16 in 1/16 inch increments.      The read-out you receive represents the amount of rootweld gap.
Part No. Description

GAL-2 Standard Econo HI-LO Gauge
GAL-2M Metric Econo HI-LO Gauge

Caltech Engineering Services

D-104, Twin Arcade, Military Road, Marol, Andheri (East), Mumbai- 400 059 India
Tel: (+91-22) 29204050 / 29201454 Fax: (+91-22) 29250932 Email: