Trenchless Pipe

Permalok® HDD Pipe

by Northwest Pipe Company

View Northwest Pipe Company on TEKEN44

The Permalok® HDD Joint is a direct push system specially designed to optimize Horizontal Directional Drilling (HDD) operations. Typically, an HDD set-up requires a substantial footprint, including a rig/operating area, reception area, and a stretch of open land for laying out the pipe string. The cost of equipment, including rollers, cranes, and excavators, as well as the labor to operate them, quickly add up. Our HDD joint eliminates the need for pipe string-out, reducing the project footprint and associated construction costs. Utilizing direct push to engage joints rather than the pull technique traditionally used in HDD applications, the Permalok® HDD system quickly and easily installs using existing equipment, and without the need for welding. It can be pushed from the shoreline or beach without the need for additional water crews or specialized tools. Our HDD joint provides the same allowable bend radius as a standard HDD installation (100 ft/OD in per ASC MOP 108). Engineered with the precision and durability guaranteed in all Permalok® products, our HDD joint offers a high-quality and cost-effective piping solution for even the most challenging HDD applications. Award-Winning Innovation The Permalok® HDD Joint has earned multiple industry honors, including NASTT’s Innovative Product of the Year. It was also featured in Trenchless Technology’s Project of the Year – New Installation for its role in the Champlain Hudson Power Express Project, where it was successfully installed in a 5,200-linear-foot dual crossing beneath New York City’s East River.