Plastic Pipes Conference Association # 2021 Amsterdam
Justin Brandt, Mike Griffin, Tony Cuvo
As plastic pipe gains share in new markets and applications, additional joining methods add further value, enabling continued growth for plastic pipes. To date, definitions of a “fit-for-purpose” mechanical joint for High Density Polyethylene (HDPE) pressure piping systems can vary significantly. As such, mechanical joints are typically undifferentiated from each other even though different manufacturers offer a range of products that provide a wide range of pressure capability and restraint perform ance. This presentation will lay out the industry standards used to define test protocols for determining the performance of a self-restrained mechanical joint for HDPE pressure pipe. This will provide a better appreciation of how self-restrained mechanical joints perform relative to what is commonly practiced in the industry. This presentation will also highlight the differences between various categories of mechanical joints to further educate the audience on restrained joint performance versus unrestrained joint performance. Further evaluation was conducted to explore mechanical joint performance relative to incumbent joining solutions: butt fusion and electrofusion. The audience will come away with a deeper appreciation of the technology behind restrained mechanical joining devices within the plastics market, how they can be misunderstood and why they are integral in the continued growth of this industry.
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