<HTML>A question or two for those with experience on Stanley boilers. Most Stanley owners have had experience with swaging the ends of their boiler tubes at one time or another.
I have located a source of new and affordable (~$200.00) mechanical roller tube expanders. Great info and downloadable PDF catalog here [
www.elliotttool.com]
My questions are:
Were the tubes originally rolled or swaged into the tube sheet.? It seems that swaging the tubes with a tapered drift would tend to (re)seat the tubes only at the outer surface of the tube sheet.
Would rolling the tubes provide a better seal due to the fact that the tube would be expanded uniformly against the full thickness of the tube sheet? Are there any risks involved in rolling vs swaging a Stanley boiler with the steel ferrules?
We are in the process of swaging a boiler now and thought a few of us would pitch in and purchase one of these tools if it made sense.
Thanks,
Dick Vennerbeck
Los Gatos, California</HTML>