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Gas Nozzles

Weldcraft® WP-12 Shield Gas Nozzles For Every Application

TIG/GTAW, HeliArc, or HeliWeld gas nozzles (also called gas cups) are available in a three types of materials; Alumina Oxide (pink), Lava (light brown ceramic) and Glass (pyrex and quartz).  TIG nozzles come in a wide variety of shapes and sizes depending on your torch and your welding application.

The gas outlet or "orifice" of a TIG gas nozzle is measured in 1/16” (1.6mm) increments.  For example if your gas cup is marked with a #4, that means it's a 1/4”, (6.4mm) or 4/16” in diameter. The gas nozzle orifice is located at the end farthest from the torch body. Orifice sizes range from; #3 = 3/16” (4.8mm) used for Micro TIG torches, to the largest, a whopping #18 = 1-1/8” (28.5mm) diameter for ultimate shield gas coverage (part of the CK Gas Saver series).

TIG Gas Nozzle Material Specifications:

  • Alumina Oxide (pink) gas nozzles are the most popular TIG cups. They are made from high-temperature shock-resistant alumina oxide that is injection molded and when fired they turn pink in color.  90% of all welding applications use alumina cups.
  • Lava (light brown ceramic) gas nozzles are made from a clay material which is machined to size then fired like pottery to give them strength.  Lava gas cups are used for high-reflective heat applications, and where a special shape nozzle is needed.  Lava nozzles can be machined to a variety of shapes and sizes without the expensive injection mold tooling involved with alumina cups.
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