Flanges With Spelter

$26.47. USOE-Castle. OE103. Shows how copper tubing is prepared for flanges; how flanges are fitted for brazing; how borax is applied before brazing flanges; how tube and flange are brazed over a forge; and how brazed flanges are prepared for installation on the hull. Brazing Flanges With Silver Solder. 13 (min) 16sd-$19.21. USOE-Castle. OE104. Shows how tubing and silver brazing flanges are fitted; how flux is applied; how heat is applied to draw silver solder in and out; and how to clean flange after soldering.