68mm plastic pipe connecting to 68mm cast iron pipe

[Joef]

I need to connect 68mm plastic pipe to 68mm cast iron pipe and the water will be running plastic to cast iron. The couplers I've come across seem to be suitable if the water was running from the cast iron pipe first to the plastic pipe. Coud someone please send me a link for a suitable coupler for this job? Tia

 

[Ric2013]

If you are running, as I suspect, a rainwater plastic pipe into a C.I. pipe and thus the pipe content is not pressurised, then you can just push the plastic into the socket. Run some sealant round it if you like.

If the C.I. pipe has had the socket cut off, something like the Saint Gobain Classical cast iron range "socket loose" A586 in nominal 65mm size has a 72mm internal bore (on the socket) which would allow your 68mm plastic pipe to fit well. Note that this part can be purchased pre-painted or primer only (if buying primer only, I strongly recommend you apply red oxide primer anyway before you paint it) and with or without fixing ears.

You can probably get a rubber coupling with Jubilee clips, but that will look like a bodge. I think the above will look far better.

 

[Lou]

(Just bumping a few older threads, they will drop off what is new soon)

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