Pipeline connection methods are vital for the integrity of any piping system. They ensure safe and efficient transport of fluids and gases. Choosing the right method directly impacts durability, maintenance requirements, and long-term system performance. Engineers and construction professionals must understand the strengths of each method to make informed decisions. This guide highlights the most common pipeline connection methods, with particular attention to PPR welding machines, which have become a key solution in modern plumbing and heating systems. Overview of