Making hard line - fittings needed

[john_bud]

Hi,

I need to make some hard lines up. I can bend the lines up, but need to weld, braze, silver solder fittings on. 3/4 line going to a 1/2 Oring boss or 37 JIC.


Anyone have a source ?

Thanks,
jb

 

[Egon]

Swagelok fittings??

No welding or brazing required. Lots of hits on google.

Tube Fittings for Leak-tight Connections - two-ferrule tube fitting by Swagelok

 

[john_bud]

I've got swagelok for 1/4 and 3/8, but not for 3/4.

I also want it to be more robust as the hard line in going to be inside a hoe boom and it has to be able to take a LOT.

I will take a look...

 

[joes_427_vette]

Did you try J & D Tube bending out of Schofield ? I have seen some of their work and their bending forms are very pleasing to the eye.

 

[john_bud]

Joes...


I have all the skills in the world for bending these tubes (they are straight!!). What I need are fittings that make a 90 degree turn and go thru a bulkhead. It really shouldn't be that tough, I'm just looking in the wrong places or using the wrong google words. I can get billions of hits that I don't want! Pounding head on desk....

And, no I didn't try J&D, but I will look....

Thanks,

jb

 

[Egon]

John, I just tried to locate some. Now there is two sore heads.

Can your local tubing supplier be of help or say a local backhoe dealers service shop?

 

[tommu56]

john_bud

I for one of those sunday repairs I have drilled out a female pipe to jic or found male fiting with the same bore as tubing size and brazed them on.

something like this SAE 37° Flare (JIC) Bulkhead Tube Union 90° Elbow



tommu56

 

[3RRL]

John,
Did you try here?
Discount Hydraulic Hose.com

Or here under fittings?
Surplus Center - Hydraulic Cylinders Pumps Motors

 

[john_bud]

YEah, tired those. May have to go to a ferrel type solution, but I REALLY REALLY want a silver solder, braze or weld on 90 degree bulkhead for 3/4 steel pipe.

The stinking backhoe is full of them! They can't be that impossible to find ... banging head on table ... they just can't be...


can they?

j

 

[tommu56]

john_bud
why not use the furrel fitting and throe out the nut and furrel and braze them to gether

from discount hydraulics
or use 27208-12-12 compression adaptor and 6500bt-1212

or give them a call mabe they have what you want but not on internet?

tommu56

 

[Farmerford]

JB:
Tommu56 has a good suggestion with one change. I used the Discound Hydraulics flareless fittings on 3/8" and 1/2" tube with great success. As you know from the Swage-Lok two ferrule fittings, the ferrules slip down around the tube and part way into the end fitting. The nut then pushes the ferrule down further into the fitting to swage it onto the tube. If you leave out the ferrule there will be a pretty big gap between the inside of the fitting and the outside wall of the tube. Melted silver solder or brass will pool in that space and probably leak into the fitting around the end of the tube.

But if you use the ferrule and nut, and then braze the nut/thread interface and nut/tube interface you will have a "double seal" that should solve your problems. Brass or silver solder should wick into the joints well enough to make everything tight.

And think of the looks you will get from your friends when they try to figure out why you welded the screw on fittings.