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When I have to connect copper to lead "D" I usually solder the copper to the lead or wipe a lead joint depending on the diameter To connect copper to cast iron ,.... If there is a hub I caulk the copper directly into the CI with oakum and poured lead (molten) OR one can solder / braze a female adapter fitting and screw the copper into a CI female fitting
You can buy the new cast iron flanges, with the expandable O rings that push into the pipe or you'll have to do the old style or pouring lead onto a cast iron flange. The latter option should only be done by professionals.
galvanized water lines, cast iron drain lines, sometimes lead pipes, terracotta or clay pipes, and in rare cases wooden pipes.
In the old days they used to use hot lead, nowadays you can cork it with Prattley putty (putty cement).
Cut out the old piping and caulk a new cast iron bell and spigot with lead and oakum and test
I love cast iron pots. If you keep them clean they are never too old.
Take out the old lead and packing and redo it.
It is used for producing cast iron cannons, bridges and Cast iron collums.
Two ways. Caulked joints and ty-seal joints. Cut the cast iron behind the hub and use a Clamp-all to join it to PVC pipe. If this sounds too difficult, CALL a Plumber.Why do you want to replace your cast iron? That would be alot of work, only replace what you need to. Unless it is your sewer line then i would replace it all to the main. I agree with answer # 1.IN ADDITION:Back in the day, cast iron joints were sealed together with hot lead. Depending on the position of the cast iron pipe and the size of it. Either one can cut the cast iron piping and clamp PVC to it or you can melt the old lead out of the cast iron joints and place PVC piping inside and then "recork" (reseal) it with prattley putty to prevent it from leaking.CORRECT1- Older CI roof drains were installed by Caulking using oakum and then pouring molten lead2- Some older CI drain drains used a Durham system meaning the Cast Iron drains were SCREWED the pipe galvanized in most cases and then the galvanized was caulked into a cast iron bell.It is unprofessional and highly unskilled to replace a cast iron leader line with plastic for several reasons.Seems the non skilled always try to use some type of epoxy..You may want to contact a licensed master plumber who has had the required 10,000 hr apprenticeship training
Of course
Mainly cast iron
Very carefully drill a hole by each end of the split then gently grind a "V" shape in the split and then use a Cast Iron welding rod AFTER pre heating the base mental and allow to cool naturally as not to thermo-shock the metal