Looks like the same hose I have. Did not see the ply mentioned but I must
have the single ply hose because it is so soft. You do nice work AL.

Now if I could only find some 1-1/2 inch dia tubing bends around .050

wall.

Ed Klepies turned me on to a place that had cheap tubing bends but the

walls

were
too thick to bead easily. I could get a bunch made if enough of you needed
some.

Paul Lamar
 ---------------

McMaster sells both types, (both on p. 201); 'silicone coolant hose' has
3-ply woven polyester; and only comes in 3 and 12 ft lengths.  It's about
$12/ft.  The other is 'Silicone rubber heater hose' and has 1-ply nylon

and

is sold by the foot.  The single ply should be fine for us up to about 5/8
or 3/4 dia; but for larger, we need the 3--ply.  That may be what you

have.

I got some  1-1/4 in the single ply but I think I will replace it.

Anybody

need some 1-1/4"?  I'll buy a 3' length and we can share.   Or maybe I'll
just keep it on hand to change out the hoses in about 5 years.

I think I got all my tube bends from Burns.  The 1-1/2" was .058 wall, as

I

recall, and the beader I had worked fine.  Cheapest way to go is to get

the

180 U-bends and cut them as needed.  Of course I'm fortunate to have a

very

talented welder nearby.

Al

 Here is what I am working on for the
fly able hardware. I have taken the expansion tank out of the large
diameter plumping circuit to simplify it and connected it to the rad with
AN-10.
The pressure cap is on the inlet side of the pump to keep the pressure
throughout the system as high as possible.

I think I might be able to bend soft 1-1/2 OD tubing by hand with a 1-3/8 OD
.177 wire
extension spring inside to prevent collapsing. The spring is 14 inches long.

McMaster part number 9640K261 $14. Getting the spring out after bending
is the big unknown. Perhaps a come along will do the job.

Burns is REAL expensive. I think I can do it for half their cost and make
some of these pipes in one piece.

Paul,

I suppose it is; but it comes with added value - it is already annealed and
bent, ready to cut and weld.  Your runs are pretty straight; if you can make
the bends in one piece, that's great.  Nice clean, simply setup.

Al

Thanks Al.

I would like to eliminate a few of the tubing welds. 

BTW That Earl's Supply tube beader you mentioned works great 
on .058 wall "O" aluminum tube.

Paul Lamar
 
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