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Discuss Replacing 2 inch cast-iron heating sweep bend fitting( in subfloor ) in the Plumbing Jobs | The Job-board area at PlumbersForums.net

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P4fal

Hi guys
Does anybody know the best way to replace this sweep bend pipefitting it is approximately 50 to 60 mm across the diameter of the bear pipework , When measured, problem is this is cast-iron Central heating pipework buried below a sub floor in a rather large early 1900s house
The corroded bend appears to have a threded Coupling on either end, removing the existing bend is probably doable but replacing it with a new fitting looks a bit tricky, please have a look at the photographs let me know if you have any good suggestions ( heating is already drained down )
Thanks guys
 

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Chase more of the floor and cut and thread further back and use a union one side but be warned it might be pined holed/ thin in places
 
Looks like 1 1/2 iron to me
If it were me, I'd cut out the bend and couplers and use 2 mechanical connectors and a new bend
I can't remember the name of the fittings, but they clamp around the pipe
Wouldn't want to put any more stress on the pipes by using a threader, as they may well leak elsewhere
 
Thanks for the replying Guys
We decided to remove the 2" iron sweep bend attach 2x 2 inch male iron to compression couplings and then make our own bend in 2 inch copper and attach ,( leaving the two existing 2 inch iron Copling is in place on the original pipework, just had to use a little bit of heat and gentle persuasion of the joints
 
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