Installation for replacing underground water pipe of lead with plastic has traction cable with head to pull plastic pipe and blades to cut lead one

摘要

The installation consists of a traction cable (1) which is inserted through a section of lead pipe (TB) after its two ends have been cut. The cable is equipped with a body (31) inside the lead pipe and a sleeve (32) outside it with a coupling (32-2) for attaching it to the replacement plastic pipe (TR). and an adapter ring (4) with a conical surface to cover the gap between the lead pipe and the sleeve. The installation consists of a traction cable (1) which is inserted through a section of lead pipe (TB) after its two ends have been cut. The cable is equipped with a body (31) inside the lead pipe and a sleeve (32) outside it with a coupling (32-2) for attaching it to the replacement plastic pipe (TR). and an adapter ring (4) with a conical surface to cover the gap between the lead pipe and the sleeve. The sleeve and body are connected by blades (33) that cut through the lead pipe lengthwise as the plastic pipe is drawn over it, leaving the lead pipe in sections that can be withdrawn manually from inside the plastic pipe.