V

Welding Glossary


 * Vapour Density of Gases Relative to Air**

irritation eyes, skin, throat; green tongue, metallic taste, eczema; cough; fine rales, wheezing, bronchitis, dyspnea (breathing difficulty).
 * Vanadium Dust** - Common exposure routes for Vanadium dust are inhalation, ingestion, skin and/or eye contact. The symptoms of vanadium exposure are,
 * Ventilate ** - To cause fresh air to enter and move around an enclosed space

**Voltage** - The pressure or force that pushes the electrons through a conductor. Voltage does not flow, but causes amperage or current to flow. Voltage is sometimes termed electromotive force (EMF) or difference in potential.

**Voltage-Sensing Wire Feeder** - Feeder operates from arc voltage generated by welding power source.

**Volt-Amp Curve** - Graph that shows the output characteristics of a welding power source. Shows voltage and amperage capabilities of a specific machine.


 * Vertical Position ** . The position of welding in which the axis of the weld is approximately vertical.


 * Vertical Position (pipe welding). ** The position of a pipe joint in which welding is performed in the horizontal position and the pipe may or may not be rotated.


 * Victor** - Victor Technologies products serves a wide range of industries including automotive, construction, education, energy, fabrication, farm and ranch, maintenance and repair, manufacturing, mining, and transportation

**Voltage Regulator.** An automatic electrical control device for maintaining a constant voltage supply to the primary of a welding transformer.

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