Web1 Feb 2005 · In that bygone era, we packed cast-iron joints with oakum and poured molten lead over the oakum along the top 1 in. of the bell-and-spigot joint. Oakum, it was explained to me, created a watertight seal by expanding greatly when wet. The lead was merely the stopper that prevented the oakum from escaping the joint, and the piping … WebExcellent lead substitute for caulking cast iron soil pipe joints. Oakum must be used for this application. Single component polyurethane sealant that cures rapidly to a firm yet flexible, waterproof and weather resistant seal.
Get the Lead Out -Article by Steve Howe
Web5 May 2024 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket … Web4 Jan 2000 · When these joints are made, a caulking iron is used to hammer the lead seal down tight against the oakum and to expand the lead that is poured in. Using a thin chisel, drive the lead out against the hub and in against the pipe. If this doesn't work, try making a … malloc free函数的用法
How to remove a cast iron lead joint (Revised/Re-edited)
WebCaulked Lead Drainage Joints 1) Caulked lead drainage joints shall not be used except for cast-iron pipe in a drainage system or venting system, or between such pipe and a) other ferrous pipe, b) brass and copper pipe, c) a caulking ferrule, or d) a trap standard. Web28 May 2012 · The pipe fitters and the plumbers, all of them used to carry rolls and rolls of the white asbestos rope (oakum) to stuff tight into and around the chase (hole in the concrete floor) and then they would cook lead and pour the molten lead on top of the asbestos rope and after it would cool...voila, no more hole No need to get a cement … Web9 Mar 2015 · Step 1: Remove lead and oakum remnants from the joint to be packed. Clean and dry the joint thoroughly. Step 2: Loosely roll the oakum to form a workable length. Do not stretch the material. Keep it thick and pliable. Step 3: Insert the smaller pipe into the hub. The bottom of the pipe should fit snugly against the bottom of the hub. malloc free new delete区别