Is TIG welding sanitary?
Types of Welds The GTAW process, also known as tungsten inert gas (TIG) welding, is a clean, high-quality welding process, often used when a precision weld is required. An inert gas, typically argon or helium, is used to shield the tungsten electrode from oxidation or contamination during the process.
What is sanitary tubing?
Sanitary fittings and tubing (categorized also as hygienic fittings and tubing) were developed and are used because they are cleanable; either by dismantling a system and manually cleaning it or using a CIP (clean in place) process. They limit entrapment areas where bacteria could form or harbor.
Can you weld stainless with a TIG?
Stainless steel can be welded with shielded metal arc welding (MIG), gas tungsten arc welding (TIG) and stick welding, and each of these processes will yield a slightly different result.
What’s the best way to weld sanitary tubing?
Back purging is the best way to weld sanitary tubing. You need to be able to cap both ends of the piece off. Several companies make purge kits for tubing, but aluminum foil will work. Insert a argon hose in one end through the foil, and leave a small hole in the other end to allow pressure to escape.
Do you radius or weld in sanitary welding?
In sanitary welding, it is advised to not weld at inner corners instead it must be radiused. Weld in this practice is usually done on flat surfaces which reduces the chances of mistakes close to nil. 3.
What kind of welding is called Sanitary welding?
The practice followed in the pharmaceuticals and drug industry is known as sanitary welding. AWS ( American Welding Society) has formed some strict regulations to follow for more hygienic welds, the D18/ D18.1 committee of the AWS created this welding standard.
Why are sanitary welding joints hard to clean?
Usually, the welds are somewhat rough and sometimes may even have excessive pitting, this results in a portion of the weld joint which is very hard to clean. Soil and other impurities get trapped in this area and attract microbial growth. This can become a huge problem if not taken care of in the early stage of the microbes growing.