Ive been a long time lurker, and been working on and off for a long time on a 6" flute with 4" sight glasses. I've decided to keep to Cu as much as possible in my build as for personal preference. Here some picks of my build with SS 4" sight glasses brazed to 4" Cu CxC coupler sleeved to affix to the flute body. Additionally I have also built an all Cu 2" to 1/2" Surge Breaker as well.
For the sight glasses I turned down the body of the sight glass on a lathe to fit inside of the Cu CxC coupler. I used the Muggy Weld SSF-6 silver Solder rod to braze the SS to the Cu.
For the 2" Cu Surge Breaker, I started off with a 2" Cu Ferrule and a 2"x1/2" Cu bell reducer. I then cut a slice off a solids scrap Cu rod and turned it down on a lathe to fit inside the 2" ferrule then soldered it in. From there, I bored out out a 1" center hole and soldered in a 1" inch down pipe to fit inside of the 2"x1/2" bell reducer. To fit the 2" Cu ferrule into the 2"x1/2" bell reducer, I utilized a 2" type "M" (O.D.=2.125, I.D.= 2.009, wall thickness=.058) copper sleeve to fit this ferrule to the 2" copper bell reducer.
6" column build
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hypnopooper
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6" column build
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Last edited by hypnopooper on Fri Oct 11, 2019 1:53 pm, edited 1 time in total.