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Bending 1-1/8" Copper Tubing - Any suggestions

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Bending 1-1/8" Copper Tubing - Any suggestions pv=nrt 12-30-2006
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Posted by AKS on December 30, 2006, 2:24 pm

> How do you all make professional bends in large tubing like 1-1/8" OD.
>
> Virtually all tubing benders (spring and lever type) seem to top out
> around 3/4",
>
> Would something like a Greenlee EMT conduit bender work.
>
> There are some specialty benders with custom dies but prices are sky
> high.
>
> Any suggestions on best known methods.
>
> P.S. I realize tight bends will require fittings. I'm talking about
> wider bends.


Even so Buba is my AH file he did gave you right answer.
There is other ways of bending copper pipe including perhaps
up to 2,1/2" however it is not to be used on refrigeration system after
bending procedure the way it is done unless lot of careful cleaning
is done. Anyway procedure it is as fallow you cut piece of
pipe/tubing that is some what longer then you need in a bend
you plug one end best way that would not open under some
pressure now you take refined sand and you purr into it
pipe/tubing while you are filling it do continues shake and
packet harder as you can make sure there is no air packets
left inside of pipe/tubing, harder or solid it is packed less
chance of getting it kinked, when you have done it close that
end tight as you can perhaps brazed small piece of copper.
Now you heat the area that bend is going to be until you
see start change of color to cherry reddish you continue
the whole length that is going to be bend, let it cool
down so you can work with put around something round
that you would prefer length of bend and go head and bend it
when you are done cut tube ends and whala you got
the bend. This procedures are done on shipyards which
most of green horns in here never hear of.
Dido say that
www.cas-environ.com



Posted by Bubba on December 30, 2006, 5:34 pm

>
>> How do you all make professional bends in large tubing like 1-1/8" OD.
>>
>> Virtually all tubing benders (spring and lever type) seem to top out
>> around 3/4",
>>
>> Would something like a Greenlee EMT conduit bender work.
>>
>> There are some specialty benders with custom dies but prices are sky
>> high.
>>
>> Any suggestions on best known methods.
>>
>> P.S. I realize tight bends will require fittings. I'm talking about
>> wider bends.
>
>
>Even so Buba is my AH file

Can someone tell me?..............Did AKS just call me a name or
something?
"Themz fightiin werds" AKS
Bubba

>he did gave you right answer.
>There is other ways of bending copper pipe including perhaps
>up to 2,1/2" however it is not to be used on refrigeration system after
>bending procedure the way it is done unless lot of careful cleaning
>is done. Anyway procedure it is as fallow you cut piece of
>pipe/tubing that is some what longer then you need in a bend
>you plug one end best way that would not open under some
>pressure now you take refined sand and you purr into it
>pipe/tubing while you are filling it do continues shake and
>packet harder as you can make sure there is no air packets
>left inside of pipe/tubing, harder or solid it is packed less
>chance of getting it kinked, when you have done it close that
>end tight as you can perhaps brazed small piece of copper.
>Now you heat the area that bend is going to be until you
>see start change of color to cherry reddish you continue
>the whole length that is going to be bend, let it cool
>down so you can work with put around something round
>that you would prefer length of bend and go head and bend it
>when you are done cut tube ends and whala you got
>the bend. This procedures are done on shipyards which
>most of green horns in here never hear of.
>Dido say that
>www.cas-environ.com
>

Posted by -zero on December 30, 2006, 5:46 pm

> How do you all make professional bends in large tubing like 1-1/8" OD.
> Virtually all tubing benders (spring and lever type) seem to top out
> around 3/4",
> Would something like a Greenlee EMT conduit bender work.
> There are some specialty benders with custom dies but prices are sky
> high.
> Any suggestions on best known methods.
> P.S. I realize tight bends will require fittings. I'm talking about
> wider bends.

What do you think about this?

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=38024

-zero



Posted by pv=nrt on December 31, 2006, 8:29 am
I was actually considering one of these. I also thought about getting
some poly pipe and either inserting it into the copper or inserting
the copper into the poly and doing hand bending. I thought the poly
might prevent kinking by providing a form/support.

There's no way I'm filling a 50' linset with sand! I've heard of
this method for small sections of small diameter tubing. Sand in a
suction tube sounds like a recipe for compressor damage unless you get
it 100% clean. I also don't know how you could dam up about 6' at
each end where most of the bending needs to be made.




On Sat, 30 Dec 2006 17:46:34 -0500, "-zero"

>
>> How do you all make professional bends in large tubing like 1-1/8" OD.
>> Virtually all tubing benders (spring and lever type) seem to top out
>> around 3/4",
>> Would something like a Greenlee EMT conduit bender work.
>> There are some specialty benders with custom dies but prices are sky
>> high.
>> Any suggestions on best known methods.
>> P.S. I realize tight bends will require fittings. I'm talking about
>> wider bends.
>
>What do you think about this?
>
>http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=38024
>
>-zero
>


Posted by geojr on December 31, 2006, 8:56 am

>I was actually considering one of these. I also thought about getting
> some poly pipe and either inserting it into the copper or inserting
> the copper into the poly and doing hand bending. I thought the poly
> might prevent kinking by providing a form/support.
>
> There's no way I'm filling a 50' linset with sand! I've heard of
> this method for small sections of small diameter tubing. Sand in a
> suction tube sounds like a recipe for compressor damage unless you get
> it 100% clean. I also don't know how you could dam up about 6' at
> each end where most of the bending needs to be made.
>
Unless I'm missing something here a 50' lineset is already coiled and if you
only need a wide bend just utilize the natural bend of the lineset as your
rolling it out- you have to be smarter than the pipe for this to work though
:-)
>
>
> On Sat, 30 Dec 2006 17:46:34 -0500, "-zero"
>
>>
>>> How do you all make professional bends in large tubing like 1-1/8" OD.
>>> Virtually all tubing benders (spring and lever type) seem to top out
>>> around 3/4",
>>> Would something like a Greenlee EMT conduit bender work.
>>> There are some specialty benders with custom dies but prices are sky
>>> high.
>>> Any suggestions on best known methods.
>>> P.S. I realize tight bends will require fittings. I'm talking about
>>> wider bends.
>>
>>What do you think about this?
>>
>>http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=38024
>>
>>-zero
>>
>



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