What is a necessary procedure for commissioning all mains and circuits in a system?

For the commissioning of all mains and circuits in a system, introducing trisodium phosphate (TSP) and degreasing the piping is a crucial procedure. This process is essential as it helps to remove oil, grease, dirt, and other contaminants from the interior surfaces of the pipes before they are put into service. Contaminants can adversely affect the performance of systems, especially in contexts where fluid quality is critical, such as in potable water systems or specialized HVAC applications.

By using TSP, which is a strong alkaline cleaner, you ensure that the surfaces are properly prepped for their intended function, leading to better connections and preventing potential issues related to contamination during operation. The use of TSP is specifically relevant in applications where chemical cleaning is necessary to maintain the integrity and functionality of the system.

While flushing the system with clean water is also an important step in commissioning to remove loose debris, it may not adequately address the grease and oils without prior degreasing. Insulating visible piping and sealing joints with adhesive, while important tasks in their respective contexts, do not address the primary concern of cleaning the piping before system activation. Therefore, the introduction of trisodium phosphate serves a fundamental role in preparing the piping system for optimal operation.