Pipe bursting

"Launching and receiving pits" replace the trench needed by conventional pipe-laying.

The smaller leading end is designed to guide the expander head through the existing pipe; earlier models did not have this feature and lost course at times, resulting in incomplete pipe bursts and project failures.

Using these fins as the primary breaking point is a very effective way to ensure that the pipe is broken along the entire circumference.

A machine is set in the receiving pit to pull the expander head and new pipe into the line.

The head is pulled by heavy, interlocking links that form a chain.