Connector for 15mm copper to 1/2" plastic....

[Sarah_W]

I can find plenty in metal at Screwfix, but none that allow me to connect to a plastic male 1/2 connector.

I've tried this which says it will connect to plastic but even with PTFE tape, it still leaked at teh plastic joint. I think I need a purpose made one with an O ring or similar.

http://www.screwfix.com/search.do;jsessionid=EXTS1...

If Anyone could point me to one they do I'd be very grateful!

THanks,
Sarah

[Ricky_M]

What is to be used for? Could you use a tap connector with a fibre washer or a flexible tap connector.

Have you tried a few wraps of PTFE and some LS-X or similar silicone jointing compound? I've used that succesfully when attaching male brass to female plastic on a 3/4 outside tap.

[Wings]

Any plumbers merchant, Hardware or Ironmongers will have a plastic speedfit connector (pushfit), connects copper 15mm to plastic 15 mm.

http://www.tradingdepot.co.uk/DEF/product/!!SPDCOU...

Edited by Wings on Tuesday 5th January 22:24

[Ricky_M]

Think she is trying to connect to 1/2" male threaded plastic though.

[Wings]

Ricky_M said:

Think she is trying to connect to 1/2" male threaded plastic though.

The same range of retailers should do a 15mm to 1/2" speedfit connector

[Sarah_W]

Ricky_M said:

What is to be used for? Could you use a tap connector with a fibre washer or a flexible tap connector.

Have you tried a few wraps of PTFE and some LS-X or similar silicone jointing compound? I've used that succesfully when attaching male brass to female plastic on a 3/4 outside tap.

It's to connect to a new toilet cistern. They're all 1/2" plastic male connectors, so I can't be alone here.

I tried using silicone and a non drying wax type jointing compound, which leaked.

I'd love to get from Screwfix (as they do next day mail order) as I can't get to shops until the weekend and need to get my toilet working ;-)

[Gingerbread Man]

Sarah_W said:

I've tried this which says it will connect to plastic but even with PTFE tape, it still leaked at teh plastic joint. I think I need a purpose made one with an O ring or similar.

This straight and this 90 degree will work push fitted onto plastic and then screwing onto the plastic threaded fill of the toilet.

On the plastic thread of the toilet fill there is no PTFE needed, just a fibre/ rubber washer.

On the plastic pipe end, this is a push fit connector. Put a insert into the end of the pipe and push it onto the plastic pipe. It will seal.


I've quoted though as you say it's leaking around the plastic still. Do you mean the plastic threaded fill or the plastic feed pipe?

The forma will be because the metal has cross threaded the plastic and you'll be there for hours fixing that one.

The latter, have you used an insert? If so you should be able to tighten onto the plastic no problem.


Get a plumber Sarah, you wouldn't have the problem.

Edited by Gingerbread Man on Wednesday 6th January 00:28

[Simpo Two]

S'funny, I fitted two Grohe cisterns without any trouble or special parts.

Can you post a photo?

[52classic]

To do it in copper you need Screwfix 23481 but make sure you get the fibre washer with it.

Or work in plastic with a 17338 straight or a 12129 bent one.

If you are using copper pipe then that's all but if plastic pipe don't forget some 18100 pipe inserts or the job will leak,

[Sarah_W]

52classic said:

To do it in copper you need Screwfix 23481 but make sure you get the fibre washer with it.

Or work in plastic with a 17338 straight or a 12129 bent one.

If you are using copper pipe then that's all but if plastic pipe don't forget some 18100 pipe inserts or the job will leak,

Sorry - should have attached an image from the start instead of my fluffy explanation.

I've managed to fit the bath and toilet successfully and would hate to call a plumber in for such a trivial job that I just need the right part for. The toilet did come with the photographed washer which is a very tough material and with no flex. I'm unsure it would be much good for sealing as I'm wary of using a lot of pressure in case I damage the plastic male fitting.

Screwfix 17338 looks pretty similar to what I've got, I think I just need soe sort of washer. SHould I try the fibrousone enclosed, perhaps coated in a thin layer of silicone?

Edited by Sarah_W on Wednesday 6th January 13:33

[Nobby Diesel]

Any plumbers merchant/builders merchant/Screwfix.
1/2"BSP to 15mm Connector. You choose, solder ring or compression, straight or 90 degree.

[dirkgently]

You need a half inch tap connector and fiber washer, compression,end feed,solder ring,speedfit the world is a mollusk of your choice and no silicone.

[cjs]

Why not use a flexible pipe?

http://www.screwfix.com/prods/18417/Plumbing/Flexi...

Will save you having to use a bend, cut the copper shorter, should look okay? You can get them in chrome if you want. Also come with an Isolating valve.

[Simpo Two]

The top of that copper pipe looks a bit mangled - that could be causing the leak...

[xllifts]

You need an olive {copper ring} to fit on the pipe between the nut and the fitting to compress up and make sure you are winding the ptfe tape the corect way

[Simpo Two]

xllifts said:

You need an olive {copper ring} to fit on the pipe between the nut and the fitting to compress up and make sure you are winding the ptfe tape the corect way

Aha, that's what those spiral marks are - I bet an olive has been twisted off with pliers. You really need to cut that bit off and start fresh, but then the pipe would probably be too short... now did I tell you about Araldite?

[Sarah_W]

Simpo Two said:

xllifts said:

You need an olive {copper ring} to fit on the pipe between the nut and the fitting to compress up and make sure you are winding the ptfe tape the corect way

Aha, that's what those spiral marks are - I bet an olive has been twisted off with pliers. You really need to cut that bit off and start fresh, but then the pipe would probably be too short... now did I tell you about Araldite?

Yep - well guessed on the olive removed with pliers. I've cut away te last few cs of the pipe and fitted one of these and it all works a treat:
http://www.toolstation.com/shop/Plumbing/Pushfit/F...

I didn't realise they worked with copper when I saw them originally. Thank you all for your help - it's really kind of you. (well, except for whoever suggested I got a plumber in ;-) )

I feel a great sense of achievement from having fitted out my bathroom all on my own (well, except for your help). I think it's called women power. :-)

[Simpo Two]

Sarah_W said:

Yep - well guessed on the olive removed with pliers.

You can actually leave an olive in place and re-use it, but if it has to come off I find the neatest way is to carefully hacksaw through it (taking care not to damage the pipe) and prise it open with a screwdriver.

Sarah_W said:

I feel a great sense of achievement from having fitted out my bathroom all on my own (well, except for your help). I think it's called women power. :-)

No, it's called using your brains to figure it out. I remain impressed!

[Spudler]

Simpo Two said:

Sarah_W said:

Yep - well guessed on the olive removed with pliers.

You can actually leave an olive in place and re-use it,

Not strictly true. You shouldn't reuse them as they've been compressed. I've had a couple of incidents where plumbers have done this and the offending item has caused slight weeping. Should always replace with new.

[Simpo Two]

Spudler said:

Simpo Two said:

You can actually leave an olive in place and re-use it,

Not strictly true. You shouldn't reuse them as they've been compressed.

I know, but there have been times where it has been the simplest solution, and with a few turns of PTFE to be sure, I've not had any problems. So, yes you *can* re-use an olive, it's just that it's not 'proper'.