Joining HDPE Pipe: A Review of Traditional and Emerging Technologies
CIM Montreal 2015
Gary Trinker (Victaulic), Jose Caba (Victaulic)
This presentation will review the methods traditionally used to join high-density polyethylene (HDPE) pipe in the mining industry, cover recent advancements in mechanical joining technologies, and provide a case study demonstrating the efficacy of the new technologies.
There are several common methods for joining HDPE pipe in mining applications, including fusion, flanging and mechanical couplings. The mechanics and general advantages and disadvantages of these joining methods will be detailed, focusing on ease and speed of installation and maintenance, the need for specialized equipment and crews, and strength and reliability of the joint. Two new mechanical joining methods that have recently been introduced—a ready-to-install plain-end coupling and a direct-groove coupling—will also be covered and compared using the same criteria as the traditional methods.
The presentation will conclude with a case study of a coal mine using the new coupling styles on lines it had previously fused. Facts and figures about the mine will be shared, along with details about the applications and results, including reduced installation and maintenance time, ease of use in confined and elevated spaces, and the ability to use multiple resources.
Mots clés :
piping, pipe, fusion, flanging, maintenance, HDPE, coupling, abrasion