What must be considered when connecting different materials of piping?

When connecting different materials of piping, galvanic reaction is an important consideration. Galvanic reaction occurs when two dissimilar metals come into contact in the presence of an electrolyte, which can lead to corrosion. This phenomenon is particularly critical in plumbing and piping systems, as it can cause one metal to corrode at an accelerated rate compared to others in the system. Understanding the materials being connected and their potential chemical interactions helps in selecting appropriate fittings, coatings, or insulation methods to prevent corrosion and ensure the longevity of the piping system.

While thermal expansion, pipe sizing, and piping insulation are also essential factors in a well-functioning pipe system, they do not specifically address the issues arising from connecting different materials. Therefore, focusing on galvanic reactions is crucial for maintaining the integrity and safety of piping connections.