Pipe bending: 1.125"/28mm How can I do it?
 

Hello

I have to duplicate a rusted out cooling water manifold pipe for a vintage truck.
I can purchase stainless pipe in 1 1/8" which is very close.

I have no pipe benders.
I have a shop press, oxy-acetylene and other tools.

Is there a way that I can bend this perhaps?

Attachment 55001

Can't speak for OZ, but I suspect the same category of suppliers there will offer 90 deg bends,


Check this site out:


https://store.sharpeproducts.com/pip...iAAEgKu9vD_BwE

Just a few questions...
Does it need to be stainless?
What is the "actual" diameter?
If it's 1 1/4 just about any fab shop should have the dies to bend that for you.
Depending on grade and hardness Stainless can be a real pain to work worth. If steel would suffice this should be an easy job for a shop.... I have 1 1/4" dies for my bender...:)
Mark

Question,

Is the 90* in OK shape and does it work under pressure in use?
What you might do is cut it off and find replacement tubing and re-weld the 90* and T fittings back on to a straight piece. You might also check with a Muffler shop about bending some tubing, but it might kink or not be a close enough radius. You also might try copper pipe with annealing it.

Let us know what you end up doing as we all learn from others efforts.

TX
Mr fixit
Chris :)

Hello everyone,

The original pipe is 27.6mm OD. = 1.086".

There is nothing much usable on the original except the little stub for the temp gauge. The whole thing has corroded paper thin from the inside :-(

I can only get 316 stainless in 28.6mm / 1.125".

Sizes available:
Copper: 1" or 1.25" 25.4mm /31.8mm.
Steel: 1" or 1.25"
Nothing in between.
:confused::confused::confused:

Regards
Bernt

What is the wall thicknessof your Stainless?
Weldells come in 45* to 180* you can cut to any degree that you want and then smoth it enough till you can not tell it was a weldment. If it is thinwall you could check out the cadilac roadster thread in automotive projects .There you will find acouple of ways to bend pipe to square tube.

3/4" sch 40 pipe is 1.050 od
I think you will find that the inside radius on those bends are smaller than what most tube benders will do .
To get those radii use pipe and use weld elbows
search R&B Wagner They have many different radii available and wall thickness the lighter schedules

Use sand. It's simple cheap and you can make perfect bends using the technique.

https://www.google.com/search?q=sand...nt=firefox-b-1

https://www.jalopyjournal.com/forum/...-pipes.140526/

https://rorty.net/news/sand-bending-exhaust-tube

Wall thickness is 1.6mm or 63mils.

I will investigate the sand idea. It has not worked for me in the past.

HI Berntd,

The one thing I know from being a electrician and bending conduit that is thin wall is you have to have good pressure into the die or "bending shoe" of the conduit (hand/foot bender) to keep the shape. These will be in a large radius which probably won't work for your situation, but it's worth a try.

You might actually find a electrician and see if his bender will fit the tubing size your working with, they come in 1"and 1.25" hand benders in commercial shops. They do have hydraulic benders for big shops too and on industrial jobs that you might stop by a new construction site and talk to the electrician, for beer they might bend it for you. The other is see if a muffler shop has that small of a bender, theirs would be hydraulic too which might work also.

Just me thinking outside of the box as usual. :rolleyes:

TX
Mr fixit
Chris :)