As I said in a previous posting I am refurbing my sisters bathroom whilst
she is on holiday. Part of the existing plumbing is using HP20 fittings. I
nreed to do some altertions, hw do I dismantle these things? I do not want
to go at it like a 'bull at a gate' and find they don't come apart easily or
I need a tool to dis-assemble.
You might find info on the Hepworth site but you turn the water off
and unscrew the cap and pull out the pipe and you will find a grab
ring ( with teeth that bite if you stick your finger in ) , a plastic
ring ,a rubber O ring and a pipe support inside the pipe .
There are different versions of these fittings and ,I believe,that
some have parts that can be reused .
Others might have more info and will be along in a wee while
Hep 20 are easily dismantled simply by unscrewing the collar and pull apart.
However, the green gripping ring cannot be pulled off. To remove this for
reuse then the pipe should be cut behind the ring which can then be slid off
There are 2 types of hep2o one you can dismantle the other you cannot.
You will need a green relaesing from the plumbers merchant for get the
green ring off, if you ask nicely they give it to you free.
As I said in a previous
posting I am refurbing my sisters bathroom whilst
Good bit of info there mrm.
All this time I've been snipping those green rings off or cutting the pipe.
I will certainly be getting a grab ring demounting tool.
Well this is interesting.
The Conex web site has downloadable PDF technical guides for their
compression fitting range and for their push fit (Cuprofit) ranges.
Looking through the compression fittings one, I can find no reference
to the use of PTFE tape. They only mention the use of a sealant for
larger fittings such as 54mm.
There is nothing for Cuprofit either that I could find.
Interestingly, both guides specify the use of a pipe cutter to cut the pipe.
Perhaps there are other compression fitting manufacturers who specify
the use of PTFE tape.....
That's a selective misquote. The suggestion is about lubrication not
sealing. The key is in the suggestion, when making the compression joint on
non-rigid pipe the pipe will twist. Not a problem if the other end is free
or pushfit. If a compression slacken off until the other end is free and
then nip up. No PTFE required in that case.
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