Can you join plastic 15 mm pipe and copper pipe using the same brass 
compression fittings that you use for copper.
 Thank you for any help

Dont even think about it !!!!!!  NO

go to a local plumber's merchants.....................and ask for the right 
fitting.

Barry

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"Jo King"  wrote in message 
news:d7rgqg$das$1@newsg1.svr.pol.co.uk...

> Can you join plastic 15 mm pipe and copper pipe using the same brass 
> compression fittings that you use for copper.
> Thank you for any help
> 

"bs"  wrote in message 
news:bJOdnZNUJM9J6jzfRVnyvg@brightview.com...

> Dont even think about it !!!!!!  NO
>
> go to a local plumber's merchants.....................and ask for the 
> right fitting.
>
> Barry
>
> -- 
>
>
> ---------------------------------------------------------------------
> "Are you still wasting your time with spam?...
> There is a solution!"
>
> Protected by GIANT Company's Spam Inspector
> The most powerful anti-spam software available.
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>
>
> "Jo King"  wrote in message 
> news:d7rgqg$das$1@newsg1.svr.pol.co.uk...
>> Can you join plastic 15 mm pipe and copper pipe using the same brass 
>> compression fittings that you use for copper.
>> Thank you for any help



On the other hand, provided you use the correct insert for the plastic pipe 
(what make are you using?) then there is no problem at all. Plumbers and 
DIYers frequently join plastic to copper with normal brass compression 
joints. You will have no problem at all. I have no idea what bs is referring 
to.

Adam

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"ARWadsworth"  wrote in message 
news:6wjoe.45226$G8.4210@text.news.blueyonder.co.uk...

>
> "bs"  wrote in message 
> news:bJOdnZNUJM9J6jzfRVnyvg@brightview.com...
>> Dont even think about it !!!!!!  NO
>>
>> go to a local plumber's merchants.....................and ask for the 
>> right fitting.
>>
>> Barry
>>
>> -- 
>>
>>
>> ---------------------------------------------------------------------
>> "Are you still wasting your time with spam?...
>> There is a solution!"
>>
>> Protected by GIANT Company's Spam Inspector
>> The most powerful anti-spam software available.
>> http://mail.spaminspector.com
>>
>>
>> "Jo King"  wrote in message 
>> news:d7rgqg$das$1@newsg1.svr.pol.co.uk...
>>> Can you join plastic 15 mm pipe and copper pipe using the same brass 
>>> compression fittings that you use for copper.
>>> Thank you for any help
>
>
> On the other hand, provided you use the correct insert for the plastic 
> pipe (what make are you using?) then there is no problem at all. Plumbers 
> and DIYers frequently join plastic to copper with normal brass compression 
> joints. You will have no problem at all. I have no idea what bs is 
> referring to.
>
> Adam


----------------------------------------------------


You said it Adam  :)

Barry

> 

Jo King wrote:

> Can you join plastic 15 mm pipe and copper pipe using the same brass
> compression fittings that you use for copper.
>  Thank you for any help



Jo,

Yes, you will need a copper to plastic compression fitting which will
include a metal insert for the plastic pipe to support the compression ring
and stop it from collapsing the plastic.

A good plumbers merchant would be the best place to ask for this type of
fitting as they will also give advice on its use if you request it.

Brian G

"Brian G"  wrote in message 
news:3gdvlrFbttmaU1@individual.net...

> Jo King wrote:
>> Can you join plastic 15 mm pipe and copper pipe using the same brass
>> compression fittings that you use for copper.
>>  Thank you for any help
>
>
> Jo,
>
> Yes, you will need a copper to plastic compression fitting which will
> include a metal insert for the plastic pipe to support the compression 
> ring
> and stop it from collapsing the plastic.


The compression fitting is still the same (a bog standard compression 
fitting). It is the insert onto the plastic pipe that is required. All 
plastic pipes that I have used (speedfit, polyplumb,hep etc) will take a 
normal compression fitting as long as the correct insert is fitted to the 
plastic pipe. It is the same insert that you need to use to join plastic 
pipe to plastic pipe using plastic connectors.


>
> A good plumbers merchant would be the best place to ask for this type of
> fitting as they will also give advice on its use if you request it.


Unless you know of a different fitting to all the ones I have seen then 
there is no special fitting.

Adam

ARWadsworth wrote:

> "Brian G"  wrote in message
> news:3gdvlrFbttmaU1@individual.net...
>> Jo King wrote:
>>> Can you join plastic 15 mm pipe and copper pipe using the same brass
>>> compression fittings that you use for copper.
>>>  Thank you for any help
>>
>>
>> Jo,
>>
>> Yes, you will need a copper to plastic compression fitting which will
>> include a metal insert for the plastic pipe to support the
>> compression ring
>> and stop it from collapsing the plastic.
>
> The compression fitting is still the same (a bog standard compression
> fitting). It is the insert onto the plastic pipe that is required. All
> plastic pipes that I have used (speedfit, polyplumb,hep etc) will
> take a normal compression fitting as long as the correct insert is
> fitted to the plastic pipe. It is the same insert that you need to
> use to join plastic pipe to plastic pipe using plastic connectors.
>
>>
>> A good plumbers merchant would be the best place to ask for this
>> type of fitting as they will also give advice on its use if you
>> request it.
>
> Unless you know of a different fitting to all the ones I have seen
> then there is no special fitting.
>
> Adam


Adam,

You are partly correct in what you say, BUT if you try and fit a compression
fitting to a plastic pipe *without* the copper liner, then the olive will
either refuse to compress around the pipe am slip under pressure or if it
does, the pipe will collapse into itself - the olive on the copper tube will
need no other support and will compress as it should to form a leak-proof
joint.

As a matter of interest, I have had plumbers doubting my parentage when I
have had to take compression fittings to them repairing burst plastic water
pipes at 2am in the morning and forgot the copper liners - store keepers
weren't too happy either when I had to call 'em out again :-)

Brian G

"Brian G"  wrote in message 
news:3gef35Fbv60fU1@individual.net...

> ARWadsworth wrote:
>> "Brian G"  wrote in message
>> news:3gdvlrFbttmaU1@individual.net...
>>> Jo King wrote:
>>>> Can you join plastic 15 mm pipe and copper pipe using the same brass
>>>> compression fittings that you use for copper.
>>>>  Thank you for any help
>>>
>>>
>>> Jo,
>>>
>>> Yes, you will need a copper to plastic compression fitting which will
>>> include a metal insert for the plastic pipe to support the
>>> compression ring
>>> and stop it from collapsing the plastic.
>>
>> The compression fitting is still the same (a bog standard compression
>> fitting). It is the insert onto the plastic pipe that is required. All
>> plastic pipes that I have used (speedfit, polyplumb,hep etc) will
>> take a normal compression fitting as long as the correct insert is
>> fitted to the plastic pipe. It is the same insert that you need to
>> use to join plastic pipe to plastic pipe using plastic connectors.
>>
>>>
>>> A good plumbers merchant would be the best place to ask for this
>>> type of fitting as they will also give advice on its use if you
>>> request it.
>>
>> Unless you know of a different fitting to all the ones I have seen
>> then there is no special fitting.
>>
>> Adam
>
> Adam,
>
> You are partly correct in what you say, BUT if you try and fit a 
> compression
> fitting to a plastic pipe *without* the copper liner, then the olive will
> either refuse to compress around the pipe am slip under pressure or if it
> does, the pipe will collapse into itself - the olive on the copper tube 
> will
> need no other support and will compress as it should to form a leak-proof
> joint.
>
> As a matter of interest, I have had plumbers doubting my parentage when I
> have had to take compression fittings to them repairing burst plastic 
> water
> pipes at 2am in the morning and forgot the copper liners - store keepers
> weren't too happy either when I had to call 'em out again :-)
>
> Brian G
>
>
>


Adam is correct. All you need to do is use the plastic liners with the 
plastic pipe and a compression fitting.
I have connected many pipes this way and a local central heating engineer 
uses nothing else and neither of us have had any problems.
--
troubleinstore

troubleinstore wrote:

> "Brian G"  wrote in message
> news:3gef35Fbv60fU1@individual.net...
>> ARWadsworth wrote:
>>> "Brian G"  wrote in message
>>> news:3gdvlrFbttmaU1@individual.net...
>>>> Jo King wrote:
>>>>> Can you join plastic 15 mm pipe and copper pipe using the same
>>>>> brass compression fittings that you use for copper.
>>>>>  Thank you for any help
>>>>
>>>>
>>>> Jo,
>>>>
>>>> Yes, you will need a copper to plastic compression fitting which
>>>> will include a metal insert for the plastic pipe to support the
>>>> compression ring
>>>> and stop it from collapsing the plastic.
>>>
>>> The compression fitting is still the same (a bog standard
>>> compression fitting). It is the insert onto the plastic pipe that
>>> is required. All plastic pipes that I have used (speedfit,
>>> polyplumb,hep etc) will take a normal compression fitting as long
>>> as the correct insert is fitted to the plastic pipe. It is the same
>>> insert that you need to use to join plastic pipe to plastic pipe
>>> using plastic connectors.
>>>
>>>>
>>>> A good plumbers merchant would be the best place to ask for this
>>>> type of fitting as they will also give advice on its use if you
>>>> request it.
>>>
>>> Unless you know of a different fitting to all the ones I have seen
>>> then there is no special fitting.
>>>
>>> Adam
>>
>> Adam,
>>
>> You are partly correct in what you say, BUT if you try and fit a
>> compression
>> fitting to a plastic pipe *without* the copper liner, then the olive
>> will either refuse to compress around the pipe am slip under
>> pressure or if it does, the pipe will collapse into itself - the
>> olive on the copper tube will
>> need no other support and will compress as it should to form a
>> leak-proof joint.
>>
>> As a matter of interest, I have had plumbers doubting my parentage
>> when I have had to take compression fittings to them repairing burst
>> plastic water
>> pipes at 2am in the morning and forgot the copper liners - store
>> keepers weren't too happy either when I had to call 'em out again :-)
>>
>> Brian G
>>
>>
>>
>
> Adam is correct. All you need to do is use the plastic liners with the
> plastic pipe and a compression fitting.
> I have connected many pipes this way and a local central heating
> engineer uses nothing else and neither of us have had any problems.



troubleinstore,

That's exactly what I said - you need a liner to go into the plastic pipe to
support the olive!

If you read Adams - "Unless you know of a different fitting to all the ones
I have seen then there is no special fitting" - then that is only partly
correct but there is an additional fitting that is needed when joining
plastic to copper using a Connex or Kuterlite compression fitting (or the
ilk) - a copper liner that fits into the plastic pipe.

Remember, I am replying to the OP who asked the specific question "Can you
join plastic 15 mm pipe and copper pipe using the same brass compression
fittings that you use for copper."

You cannot just use a plain compression fitting to join copper to plastic -
the plastic will collapse under the pressure of tightening the nut to
compress the olive -ergo the sleeve to prevent this - and to say YES to that
question without any further explanation, leaves the OP believing that he
can join copper to plastic willy-nilly without the high chance of a leak.

But you CAN use other types of push-on fittings WITHOUT the liner that will
do the job, as they are designed to 'grab' the outside of the pipe without
pressure rather than compress a brass olive e.g the Yorkshire Tectite
System - but that was not the question!

Brian G

"Brian G"  wrote in message 
news:3gg5viFc6b6aU1@individual.net...


>>>>> Jo King wrote:
>>>>>> Can you join plastic 15 mm pipe and copper pipe using the same
>>>>>> brass compression fittings that you use for copper.
>>>>>>  Thank you for any help
>>>>>
>>>>>
>>>>> Jo,
>>>>>
>>>>> Yes, you will need a copper to plastic compression fitting which
>>>>> will include a metal insert for the plastic pipe to support the
>>>>> compression ring
>>>>> and stop it from collapsing the plastic.
>>>>
>>>> The compression fitting is still the same (a bog standard
>>>> compression fitting). It is the insert onto the plastic pipe that
>>>> is required. All plastic pipes that I have used (speedfit,
>>>> polyplumb,hep etc) will take a normal compression fitting as long
>>>> as the correct insert is fitted to the plastic pipe. It is the same
>>>> insert that you need to use to join plastic pipe to plastic pipe
>>>> using plastic connectors.
>>>>
>>>>>
>>>>> A good plumbers merchant would be the best place to ask for this
>>>>> type of fitting as they will also give advice on its use if you
>>>>> request it.
>>>>
>>>> Unless you know of a different fitting to all the ones I have seen
>>>> then there is no special fitting.
>>>>
>>>> Adam
>>>
>>> Adam,
>>>
>>> You are partly correct in what you say, BUT if you try and fit a
>>> compression
>>> fitting to a plastic pipe *without* the copper liner, then the olive
>>> will either refuse to compress around the pipe am slip under
>>> pressure or if it does, the pipe will collapse into itself - the
>>> olive on the copper tube will
>>> need no other support and will compress as it should to form a
>>> leak-proof joint.
>>>
>>> As a matter of interest, I have had plumbers doubting my parentage
>>> when I have had to take compression fittings to them repairing burst
>>> plastic water
>>> pipes at 2am in the morning and forgot the copper liners - store
>>> keepers weren't too happy either when I had to call 'em out again :-)
>>>
>>> Brian G
>>>
>>>
>>>
>>
>> Adam is correct. All you need to do is use the plastic liners with the
>> plastic pipe and a compression fitting.
>> I have connected many pipes this way and a local central heating
>> engineer uses nothing else and neither of us have had any problems.
>
>
> troubleinstore,
>
> That's exactly what I said - you need a liner to go into the plastic pipe 
> to
> support the olive!
>
> If you read Adams - "Unless you know of a different fitting to all the 
> ones
> I have seen then there is no special fitting" - then that is only partly
> correct but there is an additional fitting that is needed when joining
> plastic to copper using a Connex or Kuterlite compression fitting (or the
> ilk) - a copper liner that fits into the plastic pipe.
>
> Remember, I am replying to the OP who asked the specific question "Can you
> join plastic 15 mm pipe and copper pipe using the same brass compression
> fittings that you use for copper."
>
> You cannot just use a plain compression fitting to join copper to 
> plastic -
> the plastic will collapse under the pressure of tightening the nut to
> compress the olive -ergo the sleeve to prevent this - and to say YES to 
> that
> question without any further explanation, leaves the OP believing that he
> can join copper to plastic willy-nilly without the high chance of a leak.


Look again at both my earlier posts on this subject. Both posts say thay you 
should use a liner for the plastic pipe.



> But you CAN use other types of push-on fittings WITHOUT the liner that 
> will
> do the job, as they are designed to 'grab' the outside of the pipe without
> pressure rather than compress a brass olive e.g the Yorkshire Tectite
> System - but that was not the question!


On a plastic pipe I believe you still need a liner to connect to the 
Yorkshire Tectite

You are correct in that push fit was not the question. Using a brass 
compression fitting was the question. That is what I answered and I also 
asked what type of plastic pipe the OP was using on my first post.

I do believe you refered to a  "copper to plastic compression fitting which 
will
include a metal insert for the plastic pipe to support the compression ring
and stop it from collapsing the plastic" This is the special fitting I have 
not seen. AFAIK the compression fitting is a normal brass fitting and you 
use a pipe insert.

I would also look again at the OPs name. It is probably a wind up.

Adam

ARWadsworth wrote:

> "Brian G"  wrote in message
> news:3gg5viFc6b6aU1@individual.net...
>
>>>>>> Jo King wrote:
>>>>>>> Can you join plastic 15 mm pipe and copper pipe using the same
>>>>>>> brass compression fittings that you use for copper.
>>>>>>>  Thank you for any help
>>>>>>
>>>>>>
>>>>>> Jo,
>>>>>>
>>>>>> Yes, you will need a copper to plastic compression fitting which
>>>>>> will include a metal insert for the plastic pipe to support the
>>>>>> compression ring
>>>>>> and stop it from collapsing the plastic.
>>>>>
>>>>> The compression fitting is still the same (a bog standard
>>>>> compression fitting). It is the insert onto the plastic pipe that
>>>>> is required. All plastic pipes that I have used (speedfit,
>>>>> polyplumb,hep etc) will take a normal compression fitting as long
>>>>> as the correct insert is fitted to the plastic pipe. It is the
>>>>> same insert that you need to use to join plastic pipe to plastic
>>>>> pipe using plastic connectors.
>>>>>
>>>>>>
>>>>>> A good plumbers merchant would be the best place to ask for this
>>>>>> type of fitting as they will also give advice on its use if you
>>>>>> request it.
>>>>>
>>>>> Unless you know of a different fitting to all the ones I have seen
>>>>> then there is no special fitting.
>>>>>
>>>>> Adam
>>>>
>>>> Adam,
>>>>
>>>> You are partly correct in what you say, BUT if you try and fit a
>>>> compression
>>>> fitting to a plastic pipe *without* the copper liner, then the
>>>> olive will either refuse to compress around the pipe am slip under
>>>> pressure or if it does, the pipe will collapse into itself - the
>>>> olive on the copper tube will
>>>> need no other support and will compress as it should to form a
>>>> leak-proof joint.
>>>>
>>>> As a matter of interest, I have had plumbers doubting my parentage
>>>> when I have had to take compression fittings to them repairing
>>>> burst plastic water
>>>> pipes at 2am in the morning and forgot the copper liners - store
>>>> keepers weren't too happy either when I had to call 'em out again
>>>> :-)
>>>>
>>>> Brian G
>>>>
>>>>
>>>>
>>>
>>> Adam is correct. All you need to do is use the plastic liners with
>>> the plastic pipe and a compression fitting.
>>> I have connected many pipes this way and a local central heating
>>> engineer uses nothing else and neither of us have had any problems.
>>
>>
>> troubleinstore,
>>
>> That's exactly what I said - you need a liner to go into the plastic
>> pipe to
>> support the olive!
>>
>> If you read Adams - "Unless you know of a different fitting to all
>> the ones
>> I have seen then there is no special fitting" - then that is only
>> partly correct but there is an additional fitting that is needed
>> when joining plastic to copper using a Connex or Kuterlite
>> compression fitting (or the ilk) - a copper liner that fits into the
>> plastic pipe.
>>
>> Remember, I am replying to the OP who asked the specific question
>> "Can you join plastic 15 mm pipe and copper pipe using the same
>> brass compression fittings that you use for copper."
>>
>> You cannot just use a plain compression fitting to join copper to
>> plastic -
>> the plastic will collapse under the pressure of tightening the nut to
>> compress the olive -ergo the sleeve to prevent this - and to say YES
>> to that
>> question without any further explanation, leaves the OP believing
>> that he can join copper to plastic willy-nilly without the high
>> chance of a leak.
>
> Look again at both my earlier posts on this subject. Both posts say
> thay you should use a liner for the plastic pipe.
>
>
>> But you CAN use other types of push-on fittings WITHOUT the liner
>> that will
>> do the job, as they are designed to 'grab' the outside of the pipe
>> without pressure rather than compress a brass olive e.g the
>> Yorkshire Tectite System - but that was not the question!
>
> On a plastic pipe I believe you still need a liner to connect to the
> Yorkshire Tectite
>
> You are correct in that push fit was not the question. Using a brass
> compression fitting was the question. That is what I answered and I
> also asked what type of plastic pipe the OP was using on my first
> post.
>
> I do believe you refered to a  "copper to plastic compression fitting
> which will
> include a metal insert for the plastic pipe to support the
> compression ring and stop it from collapsing the plastic" This is the
> special fitting I have not seen. AFAIK the compression fitting is a
> normal brass fitting and you use a pipe insert.
>
> I would also look again at the OPs name. It is probably a wind up.
>
> Adam


Possibly a wind up Adam, but the question was a sensible one and not the
usuall troll one - and I must admit that in the past, I have posted under
some weird names (one of the e-mail address I use is actually
micktake@******)  - so I'll reserve judgement on that one. :-)

All the best

Brian G