A sanitary weld is fully penetrated, which means the weld accesses the ID of the tube and that it creates a100% structural joint. This type of weld has a smooth surface where it will contact any product, ensuring easy and reliable cleaning with no crevices or oxidation that could possibly harbor bacteria and other contaminants.

To ensure a sanitary design, and be compliant with standards and regulations, TFG ensures that all food-contact surfaces, including welds, should be:

• Smooth
• Impervious
• Free of cracks and crevices
• Nonporous
• Nonabsorbent
• Non-contaminating
• Inert
• Corrosion-resistant
• Durable and maintenance-free
• Nontoxic
• Cleanable

The weld must be purged with a highly pure inert gas to remove the hazardous gases released and built up during the welding process, which can otherwise pool and cause discoloration, contamination, and oxidation. Finally, TFG inspect the weld using a borescope to verify that the weld is fully penetrated and to identify any defects or contamination.