HYMAX Large Diameter products connect pipes with ODs of 14 to 60 inches and require tightening only four top-facing bolts. HLDs also have a one-piece, stab-on design which further makes it simpler to install. Compare that to similar sized couplings that require as many as 25 bolts and require putting together different parts, and you can see why HLDs get the job done quickly. There’s no need to dig under the pipe to tighten the bolts and no bolts to lose in the mud (click the video on the left).

HLDs have an exceptional range of up to 2.1 inches and can connect pipes for a variety of different materials. Compared to other couplings, which are range-dedicated and limited to a single pipe size, installers have much greater flexibility to make repairs as they uncover pipes in the ditch.

HLDs are a durable, long-term repair solution that can reliably withstand harsh ground conditions. They absorb post-installation dynamic pipe deflection of up to 4° on each end, reducing the risk of damage and cracking due to ground shifts and temperature changes, and saving resources on constant future pipe repairs.

Best of all HLDs help improve worker safety by minimizing time in the ditch. When the repair can be made quicker, there’s less time in the ditch which is a key factor to having crews go home safe and sound.