I've been working on creating a new sight glass for my 20g kettle that came with TC ports for a sight glass near the top and bottom. Anyone have a metal lathe and stainless welding skills?
After a brief lapse in my google kung-fu, I was able to find 1" Kimax heavy wall borosilicate tubing for a reasonable price. Part # CG-703-06L looks like an exact match to the original (1" OD w/ 5/32" walls), or I could go up to 1.25" OD #CG-703-07L. Approx $35 shipped for a 4' tube. One part down.
I have a pair of 1" TC sight glasses i'm planning to extend with new rods and glass. I can get rods here from McMaster, but they are a bit pricey. http://www.mcmaster.com/#liquid-level-gauges/=j2vxq1
. I need 14 1/4" version if I go with the parts I have. Any leads on stainless 1/4" rod with threaded ends? I have no desire to try and thread 1/4" stainless rod...
The sight glass is two flanges, 4 rods/nuts, a borosilicate glass tube and a pair of silicon rings. Pretty straightforward design where the nuts are designed to hold the flanges in alignment while providing enough compression into the silicon seal to prevent leaks.
[Edit -- I bought this; not my creation]
I would rather have less bulky 1" TC elbow welded directly to an appropriate flange -- however, I can't weld, nor do I have a metal lathe... anyone willing to build four of them?
This would gain me about 2" on the sight glass and probably mean I wouldn't have to buy new sight glasses with new rods/glass (and I could return the ones I have). 'course, it would probably cost as much as a sight glass for the custom work.
Something like this. I think I could literally have a flanged 1" TC like this
welded onto a ~3" stainless disc about a 1/4" thick with a 1.5" hole in the center and 4 holes on the perimeter for rods. Hmm, or maybe solder?