Save Money, Time and Eliminate Field-Welding
with the New Permalok Type HDD Profile.

St. Louis MO – Horizontal Directional Drilling contractors are now freed from field welding! Permalok Corporation, the exclusive source of the patented Permalok interlocking pipe joining system, has introduced a new pipe profile specifically for HDD applications. With the new Permalok Type HDD profile, the trusted Permalok technology used in auger boring, microtunneling, pipe jacking and ramming is now available to the HDD industry.

The Problem – Time, Cost, and Lack of Space

Prior to the Permalok Type HDD connection, HDD contractors installing steel pipe needed to weld together long strings of material before installation; they also needed a long laydown area near the drilling site to stage the material. Unless they could make up the entire run in one string, the contractor had to stop installation to weld the sections of the run.Welding was costly, time consuming and often not enough room was available to stage significantly long sections to cut down on work stoppages while joining sections together. And in the case of ocean outfalls or fresh water intakes, expensive marine equipment had to be available, to assist the pull back stage of the operation in the waterside of the drill path.

The Solution – Join the Sections of the Pipe in Mere Seconds, Using Your Drill Rig

Permalok solved the problem by applying its field-proven, welding-free technology to horizontal directional drilling. The new Type HDD profile incorporates an additional locking key on the male portion of the joint to greatly increase pull-apart resistance. The new profile is considerably longer for more flexibility in bending. Also, by increasing the joint length, the spacing between interlocking ribs is greater, making the connection easier and faster with less force required to complete the joint makeup.

With the new Type HDD profile, contractors can install steel pipe from the rig side of the bore path, using the drill rig to make up the sections and advance them, similar to installing drill stem. There is no need for expensive marine equipment because the pipe is installed from the landside of the operations on ocean outfall and fresh water intakes.

Take Advantage of Our Newest Connection

Permalok Type HDD profile saves space, time and money compared to HDD installations using traditional steel pipe. It is fast, efficient, strong, flexible, and frees contractors from field welding. The Type HDD profile is available in 4" to 20" diameters in lengths from 10' to 40' and a range of wall thicknesses.

Permalok’s Type HDD connection has helped leading HDD contractors successfully and cost-effectively complete HDD installations as long as 4,500 linear feet.

For more information or a prompt quotation, contact Dave Mittler at Permalok at 800-280-5511, or visit our web site at www.permalok.com.