old steel pipe thread sealing external

[svouts]

Hi, I have renovated and re-installed some cast iron radiators after installing new flooring. Since the floor was raised by a quarter inch i have twisted upwards the old pipe joint by tightening it slightly (see photos). Now there is a very small leak, a drop every hour or so.

I cannot remove this part of the pipe and put teflon tape in the threads since it is against the wall. Also i do not want to damage the newly decorated wall and the new paint in the cast iron radiator and the new flooring below.

Is there any way to seal it by soldering, welding, chemical welding or gluing it, without disassembling the steel pipe?

 

[just pumps]

Not at all surprised it is leaking, what size stillsons did it take to move the joint and how do propose to remove those unsightly grooves?

 

[Lower]

I would cut the joint close to the bend and remove the remaining stub leaving the threaded straight section in place. Then use a threaded adaptor on the steel pipe to convert to copper. You should have enough space to get an adaptor and a 90 soldered bend in 15mm to connect a new radiator valve.

Alternatively, if you could get off all the paint and drained all the pipework, you may be able to solder up the joint.

 

[Nige F]

I would cut the joint close to the bend and remove the remaining stub leaving the threaded straight section in place. Then use a threaded adaptor on the steel pipe to convert to copper. You should have enough space to get an adaptor and a 90 soldered bend in 15mm to connect a new radiator valve.

**Alternatively, if you could get off all the paint and drained all the pipework, you may be able to solder up the joint**.

**won't work I'm afraid - but 1st idea will
Maybe a small piece of genuine slate could be driven into the gap in the joint ? I saw that done back in 19**

 

[svouts]

i just did a search for a couple of hours and found an epoxy compound:
https://www.amazon.co.uk/Winplus-6002CARDED-Quicksteel-Epoxy-Carded/dp/B000FW7UOM

do you think it will work?