The traditional method of installing pipe for applications within or between buildings is to construct rigid metallic piping systems (e.g., copper, steel), fabricated on-site from individual straight lengths, typically welded or brazed, then insulated and covered with protective material. For buried piping, the application of the waterproof outer covering is expensive and adds additional time.
Each time a pipe direction needs to change, fittings are installed to reroute the pipe around obstacles or corners. And because these piping systems often experience wide temperature ranges, expansion arms and loops to accommodate for longitudinal thermal expansion are a critical part of the design and fabrication.
By integrating all components into one pre-manufactured assembly, flexible pre-insulated plastic piping systems can provide significant time and cost savings, as compared with field-manufactured insulated piping systems constructed on-site of individual components while ensuring consistent performance of the piping system.