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flexible copper pipe "plumb sticks" or pipe bending



 
 
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  #1  
Old January 24th 08, 04:34 PM posted to uk.d-i-y
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Posts: 217
Default flexible copper pipe "plumb sticks" or pipe bending

Hello,

What are your thoughts on these flexible "plumb sticks"? I was
wondering whether to use one as I have an S-shape to fit and its near
to the boiler so I cannot use plastic.

I've seen these flexible pipes in Focus, B&Q, etc. would they be
suitable? Are there any problems with using them?

Does anyone else sell them? The ones in the shops are 350mm which is
bigger than I really need. Google hasn't been much help. Does anyone
sell shorter ones?

If not, how easy is it to put an S bend into 22mm copper? I've never
used a pipe bender before.

Thanks,
Ads
  #2  
Old January 24th 08, 04:41 PM posted to uk.d-i-y
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Posts: 2,260
Default flexible copper pipe "plumb sticks" or pipe bending

On Jan 24, 3:34*pm, Fred wrote:
Hello,

What are your thoughts on these flexible "plumb sticks"? I was
wondering whether to use one as I have an S-shape to fit and its near
to the boiler so I cannot use plastic.


Why not? Just use right angles instead. Or is the difference in
alignment too small for two RA pushfits?

I've seen these flexible pipes in Focus, B&Q, etc. would they be
suitable? Are there any problems with using them?


Absolutely fecking brilliant invention! Only thing is, even the ends
are thinner than normal pipe and easily deformed. No problem mating
with compression or plastic push fit.

Does anyone else sell them?


Don't think Tesco do, nor Waitrose, so no.

The ones in the shops are 350mm which is
bigger than I really need. Google hasn't been much help. Does anyone
sell shorter ones?


I haven't seen them. Homebase do longer ones.


If not, how easy is it to put an S bend into 22mm copper? I've never
used a pipe bender before.


I wouldn't bother unless you need the bender for other jobs.

MBQ
  #3  
Old January 24th 08, 04:52 PM posted to uk.d-i-y
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Posts: 269
Default flexible copper pipe "plumb sticks" or pipe bending

"Fred" wrote in message
...
Hello,

What are your thoughts on these flexible "plumb sticks"? I was
wondering whether to use one as I have an S-shape to fit and its near
to the boiler so I cannot use plastic.

I've seen these flexible pipes in Focus, B&Q, etc. would they be
suitable? Are there any problems with using them?


They seem to work OK, but every installation I've ever seen with them looks
like an amateurish bodge. I'm sure there may be reasons to use them, but
I've never come across one.

Does anyone else sell them? The ones in the shops are 350mm which is
bigger than I really need. Google hasn't been much help. Does anyone
sell shorter ones?


Don't know.

If not, how easy is it to put an S bend into 22mm copper? I've never
used a pipe bender before.


Depends on the pipe bender.
A proper pipe bender will make a good job, and won't collapse the pipe.
A springy thingy will make a poor job and dislocate your kneecap into the
bargin.
http://groups.google.com/group/uk.d-...5fee0e5c98d465

Even with a proper pipe bender, it can be difficult to fabricate a piece
with multiple bends in different plains close to one another. It requies
practice, and a bit of experience to know what order to pull the bends in,
so as to be able to fit the work-piece back into the bender for the next
bend. You also need to learn where to position the pipe in the former to
achieve the bend in the place you want....
http://www.diyfaq.org.uk/plumbing/Pi...%20(BillP).pdf

Practice on some old off-cuts first. Bend slightly further than required,
it will spring back a wee bit.

Try to design the pipe layout to minimise the tortuosity of the pipework,
and consider where elbows would be acceptable as well as radiused bends.

--
Ron


  #4  
Old January 24th 08, 05:04 PM posted to uk.d-i-y
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Posts: 1,226
Default flexible copper pipe "plumb sticks" or pipe bending

On Thu, 24 Jan 2008 15:34:31 +0000, Fred wrote:

Hello,

What are your thoughts on these flexible "plumb sticks"? I was wondering
whether to use one as I have an S-shape to fit and its near to the boiler
so I cannot use plastic.

I've seen these flexible pipes in Focus, B&Q, etc. would they be suitable?
Are there any problems with using them?

Does anyone else sell them? The ones in the shops are 350mm which is
bigger than I really need. Google hasn't been much help. Does anyone sell
shorter ones?

If not, how easy is it to put an S bend into 22mm copper? I've never used
a pipe bender before.

Thanks,


==================================
You could probably achieve the same result with two of these:

http://www.screwfix.co.uk/prods/1813...-End-Feed-22mm

http://tinyurl.com/2hecjj

Cic.

--
===================================
Using Ubuntu Linux
Windows shown the door
===================================

  #5  
Old January 24th 08, 05:31 PM posted to uk.d-i-y
external usenet poster
 
Posts: 14,316
Default flexible copper pipe "plumb sticks" or pipe bending

In article ,
Fred wrote:
If not, how easy is it to put an S bend into 22mm copper? I've never
used a pipe bender before.


A proper pipe bender requires practice to learn the skill. Some will learn
faster than others. And a good one isn't cheap. But would two 45 degree
elbows back to back give you what's needed?

--
*Reality is the illusion that occurs due to the lack of alcohol *

Dave Plowman London SW
To e-mail, change noise into sound.
  #6  
Old January 24th 08, 05:54 PM posted to uk.d-i-y
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Posts: 4,046
Default flexible copper pipe "plumb sticks" or pipe bending


"Fred" wrote in message
...
Hello,

What are your thoughts on these flexible "plumb sticks"? I was
wondering whether to use one as I have an S-shape to fit and its near
to the boiler so I cannot use plastic.


If the connection is outside the case plastic in most case can be run to the
boiler. Look at makers instructions.

  #7  
Old January 24th 08, 06:55 PM posted to uk.d-i-y
external usenet poster
 
Posts: 4,046
Default flexible copper pipe "plumb sticks" or pipe bending


"Fred" wrote in message
...
Hello,

What are your thoughts on these flexible "plumb sticks"? I was
wondering whether to use one as I have an S-shape to fit and its near
to the boiler so I cannot use plastic.

I've seen these flexible pipes in Focus, B&Q, etc. would they be
suitable? Are there any problems with using them?

Does anyone else sell them? The ones in the shops are 350mm which is
bigger than I really need. Google hasn't been much help. Does anyone
sell shorter ones?

If not, how easy is it to put an S bend into 22mm copper? I've never
used a pipe bender before.

Thanks,


How about 45 degree elbows?

  #8  
Old January 25th 08, 10:29 AM posted to uk.d-i-y
external usenet poster
 
Posts: 217
Default flexible copper pipe "plumb sticks" or pipe bending

On Thu, 24 Jan 2008 17:55:47 -0000, "Doctor Drivel"
wrote:


How about 45 degree elbows?


I've never seen 45deg elbows.

I'm not sure whether there's enough room to use two 90deg elbows but I
thought using too many elbows was frowned upon, and I thought they
reduced flow or something?

Thanks.
  #9  
Old January 25th 08, 10:43 AM posted to uk.d-i-y
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Posts: 3,368
Default flexible copper pipe "plumb sticks" or pipe bending

On Fri, 25 Jan 2008 09:29:39 GMT someone who may be Fred
wrote this:-

I've never seen 45deg elbows.


I can't say that I have ever seen 45 degree compression elbows.
However, they are available in a solder fittings.

Elbows are not as good as smooth bends formed in the pipe, as they
restrict flow a little, cost money and may leak. However, a small
number of elbows is not going to make a big difference in most
systems.



--
David Hansen, Edinburgh
I will *always* explain revoked encryption keys, unless RIP prevents me
http://www.opsi.gov.uk/acts/acts2000/00023--e.htm#54
  #10  
Old January 25th 08, 11:38 AM posted to uk.d-i-y
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Posts: 14,316
Default flexible copper pipe "plumb sticks" or pipe bending

In article ,
Fred wrote:
On Thu, 24 Jan 2008 17:55:47 -0000, "Doctor Drivel"
wrote:



How about 45 degree elbows?


I've never seen 45deg elbows.


Probably only in solder fittings.

I'm not sure whether there's enough room to use two 90deg elbows


Hence the 45 degree ones - will give a smaller minimum offset. Which you
can adjust by the length of the pipe between then. With care that can be
so short that they butt together.

but I thought using too many elbows was frowned upon, and I thought they
reduced flow or something?


As will adding your bendy pipe. Or any bends, come to that. Correctly
soldered elbows with careful pipe preparation will introduce less
resistance than any other type of fitting.

--
*Most people have more than the average number of legs*

Dave Plowman London SW
To e-mail, change noise into sound.
 




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