UN APARATO PARA ENSANCHAR UN TUBO A UNA DISTANCIA PREDETER-MINADA DE UNO DE SUS EXTREMOS.

摘要

A tube expander comprising an elastomer bushing which expands outwardly when compressed between two bushings pulled together by a cable, which is pulled through a plurality of short lengths of tubing capable of folding against each other when the cable is slack, allows the tube expander to fit through manways and into corners of channel heads of heat exchangers to expand the tubes a predetermined distance from one end thereof.