The shielding gas exits the gas nozzle (gas lens) and fills the gas cup that screws over and surrounds the gas nozzle.
Gas nozzles are available with a variety of size holes to fit the different size Tungsten electrodes.
|TIG Gas Nozzle||Gas Nozzle|
|Nozzle Type||Names Used|
A bog standard gas nozzle (collet body). Great for straight forward TIG welding.
The ‘Stubby’ gas nozzle is basically a shortened version of the longer standard gas nozzle (to aid usage in tighter spaces).
The ‘Wide’ gas nozzles are designed to give a good shielding gas coverage. A diffuser is often fitted, to try and focus the shielding gas. This often allows the tungsten electrode to protrude further from the gas cup, aiding visibility when welding in restricted spaces. They also allow for a shorter TIG gas cup to be fitted, giving easier access (with a now shorter TIG torch) in restricted spaces.
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