this is the most gayest site ive ever seen in my life!
The regulators are attached to the fuel and to the oxygen sources. The oxygen regulator is attached to the oxygen tank and drops the pressure from about 21000 kPa (3000 lb/in² = 200 amospheres) to a lower pressure for the torch. This pressure can be adjusted to suit the job at hand by turning a knob on the regulator, and can be set from 0 to about 700 - 1400 kPa (100 - 200 lb/in²). Likewise the fuel regulator is attached to the fuel source and drops the pressure to a level for the torch to use. For acetylene this is 0 to 100 kPa (15 lb/in²).
The flexible hoses connect from the regulators to the torch and carry the fuel gas and the oxygen. The fuel gas connections have left hand threads and the oxygen connectors have right hand threads so that the two cannot be interchanged, so as to help prevent accidents.
The welder wears goggles or a shield with a shaded lens to protect his eyes from glare and flying sparks and splatter, and wears leather gloves to help protect his hands from burns. He should also wear clothes and shoes appropriate for welding. [[Sunglasses]] are <b><u><i>not</i></u></b> adequate.
Note that the proceedures and equipment used for gas welding are essentially the same as for gas [[brazing]].
