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Discussion Forum

Flaring steel hydraulic tube ends

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chuckinNC

04-15-2002 11:54:36




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Has anyone ever used a plumming type flaring tool
to flare steel hydraulic tubing?I need to redo a
couple of ends and wanted to know if theres any
special tools I may need before starting the project.




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rhudson

04-15-2002 18:41:14




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 Re: Flaring steel hydraulic tube ends in reply to chuckinNC, 04-15-2002 11:54:36  
double flare is a method of obtaining a double layer of tubeing at the flare. the tube in tucked or rolled inward, then the flare is formed. it absorbes vibration much better that normal flares. Snitkawl is correct in saying that hydraulic flares are a spec. known as JIC 37.



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Chris

04-15-2002 17:26:07




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 Re: Flaring steel hydraulic tube ends in reply to chuckinNC, 04-15-2002 11:54:36  
snap on makes a double flareing tool that flares steel with the right angle, without splitting the tube. I also believe harbor freight has a less expensive one



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snitkawl

04-15-2002 16:11:24




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 Re: Flaring steel hydraulic tube ends in reply to chuckinNC, 04-15-2002 11:54:36  
Hydraulic lines are usually flared 37.5 degrees and plumbing flares and SAE(brake lines for instance) are 45 degrees. I thought about doing that myself(with my brake line flaring tool) until I remembered the difference in the angles.



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chuckinnc

04-15-2002 18:11:51




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 Re: Re: Flaring steel hydraulic tube ends in reply to snitkawl, 04-15-2002 16:11:24  
I also see the term (does double flaring) when
looking for tools.Do you know what this means? Maybe the 2 different angles?



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Kelvin

04-16-2002 13:04:02




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 Re: Re: Re: Flaring steel hydraulic tube ends in reply to chuckinnc, 04-15-2002 18:11:51  
The double flaring tool I borrowed once looked a lot like a regular copper flaring tool, but it is heavier made up-to handle steel tubing instead of copper-and there are inserts to go in the tubing so that your first press will cause the tubing to bulge a bit below the end. Then you remove the insert and finish the flare the regular way. It actually causes the tubing to fold around the bulge so the end is inside the finished flare. If that makes any sense.

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rayinny

04-16-2002 15:59:54




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 Re: Re: Re: Re: Flaring steel hydraulic tube ends in reply to Kelvin, 04-16-2002 13:04:02  
Double flaring rolls the end of the tube over so the flare is on solid metal and not the cut end of the tube. A single flare may split under heavy pressure.



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