Type A Sleeve Pipeline Repair Heated by Induction

This paper describes the experimental laboratory test in applying a snug fitted pipeline repair sleeve in an 8-inch diameter of non-defective pipe. The sleeve was forced to conform to the carrier pipe by induction heating. That procedure has successfully provided the mechanical interference between pipe and sleeve. The interference was evaluated by stress measurements by using strain gages installed after sleeve application over the pipe, but the measurements were performed during the disassembling of the sleeve.