By: Townsend On: Mon Nov 07, 2011 4:19 pm
Here are some pics of the installation process of the new style flange that I had installed earlier this year. I thought I had posted the pics before, but I had not. I felt they were interesting enough to add and seeing that forum member McGiever was contemplating the job felt it would be beneficial to post.
The procedure consists of essentially 'moving' the hole for the coil approximately 3/4 an inch upwards in the boiler. This required a simple rectangular piece cut out from the top of the opening and a similar size piece welded to the bottom of the opening. The studs that remained were cut off and the holes welded up. The new flange was then welded onto the new, higher up opening. I had an "R" stamp welder come to the house to do the job.
As you can see, the new flange sticks out from the boiler several inches. This whole change over was to facilitate not having to deal with the studs in the future when gasket removal is needed. Because the flange flairs outward, away from the boiler, it has bolts instead of studs. The new bolts that attach the face flange to the boiler side flange are not in contact with water, as were the old style studs. Was it needed? I don't know. Although the boiler I bought was neglected in that the gasket leaked and was not repaired in a timely manner hence causing corrosion to the face of the boiler where the flange mounted, I believe it was not severe enough to warrant the repair/retrofit. I decided to change to the new style simply because I was in the rebuild process anyway, and I might as well handle it now while the unit was easily accessible etc.
The last (bottom) pic is the boiler before doing any work.
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Last edited by
Townsend on Mon Nov 07, 2011 4:59 pm, edited 1 time in total.