Hydraulic Jack Hard Line Compression Fitting

[GPappy]

I purchased a bridge jack for my 4 post lift and have been cleaning it up. It was pretty rusty and needed a complete teardown, clean up, and repainting. It had been leaking when I got it and I found a crack in a hard line going from the air over hydraulic pump to the cylinder. I took it to a couple of hydraulic shops who said that it was a 5/8" copper line but no one had any in stock and I finally ran out of shops to ask.

Does anyone recognize the compression sleeves that are used? Making new lines is not a problem but all the googling I have done has not uncovered anything like the compression sleeves. If I can't find the compression sleeves I would be fine with changing over to flared fittings but would need to find adapters for the existing fittings or cut the one off the cylinder to weld on something new (not something I would like to do)>

Anyone with any experience with these? I checked the jack manufacturer who is happy to sell me a new hard line for $160 but I was hoping to spend a little less.

 

[The Cobbler]

I'd be tempted to try knocking it off of the line . use some heat to anneal it /soften the copper line .
can you silver solder the copper line where it's broken?
also maybe a regular compression ring would work in there too?

 

[GPappy]

I'd be tempted to try knocking it off of the line . use some heat to anneal it /soften the copper line .
can you silver solder the copper line where it's broken?
also maybe a regular compression ring would work in there too?

Thank you for the reply. I guess I have start out with saying that I mistyped. For some reason I keep wanting to call it copper tubing when it is brass. Probably because I have used copper for years and had never run across brass.

I could try knocking it off of the line but my fear would be that the fitting is already compressed so it would not go on a new line unless it could be expanded on a mandrel somehow. Might work but was hoping to find a source of the original if I could.

I might try silver solder although part of the reason that it cracked was due to a sharp bend that looks like it had been work hardened. Not sure if I could reduce the bend some to relieve the restriction caused by the bend or not.

I did find one source of compression rings that stated that they were good to 3000 PSI although most are less the 400 PSI. The pump is rated at 3200. It looks like this fitting has more of a taper than a standard compression fitting does so not sure it would work especially at pressure.

I appreciate the feedback. May try the silver solder route if I can't find the proper fittings.

 

[metaldad]

some one will correct me.
yor lock fittings - hydraulic compression.
im going to compile a listing of hydraulic fittings in classified soon. i do have that 5/8 sleeve in stainless. probably have steel and brass somewhere here
mc master carr
https://www.mcmaster.com/yor-lok-tu...teel-tubing/?SrchEntryWebPart_InpBox=yor+lock

 

[metaldad]

these guys call theirs duo lock

 

[claas880]

It looks like a one piece ferrule to me. Kind of like a parker 24 degree flareless fitting. mcmaster carries some of them.
Are the threads on male body 7/8" 14tpi?

 

[GPappy]

It looks like a one piece ferrule to me. Kind of like a parker 24 degree flareless fitting. mcmaster carries some of them.
Are the threads on male body 7/8" 14tpi?

It is one piece and I was not able to find anything like it. Luckily the silver solder idea worked and it appears to be holding well. I would still like to find some of fitting just in case but for now it looks like I am operational.

 

[HYDRAULIC MAN]

I'd be tempted to try knocking it off of the line . use some heat to anneal it /soften the copper line .
can you silver solder the copper line where it's broken?
also maybe a regular compression ring would work in there too?

Hopefully you have found by now. In So Cal. I call The Hose-man it is a standard item you purchase the fitting it comes with 1 compression sleeve 323 724-3380