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
Would something like a Greenlee EMT conduit bender work.
There are some specialty benders with custom dies but prices are sky
Any suggestions on best known methods.
P.S. I realize tight bends will require fittings. I'm talking about
You can heat it and bend it although it will cause flaking inside,
You can use one of the expensive benders
You can cut it and use fittings
You can bend it by hand but stop just before it kinks :-)
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
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"
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