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Old 05-03-2012, 09:40   #31
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Re: Hydraulic Hose - Copper Tube versus Hose

Bending copper tubing and doing a good flare fitting just takes a little practice.
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Old 05-03-2012, 10:09   #32
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Re: Hydraulic Hose - Copper Tube versus Hose

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Bending copper tubing and doing a good flare fitting just takes a little practice.
true.
and I have a 4 year apprenticeship in refrigeration. so have practical knowledge and the schooling.
Refrigeration pipe work is very precise with quality for handling temperature ranges, vibrations and not leaking. Also internal cleanliness of tube. Don't ever blow in it - will introduce moisture. I assume is the same as hydraulics...
But, there are many other issues that I am trying to "know" before going forward.
50' roll of refrigeration tube for 105 bucks - home depot.
Mechanical bender is about 150 bucks - on-line
spring bender - home depot - reasonable - but not as good as mechanical bender.
need good tube cutters - home depot 20 bucks.
flaring tool - also at home depot - about 20bucks. BUT, if I am not mistaken the refrigeration flare angle is 45degrees. Others are other angles.
I assume the teleflex is the same - not sure about plumbing??? which may be the one at home depot. -will check it out...
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Old 05-03-2012, 11:16   #33
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Re: Hydraulic Hose - Copper Tube versus Hose

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That's a relief i usually travel in straight lines.
--so you don't need to worry about bump-steer
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Old 05-03-2012, 13:46   #34
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Re: Hydraulic Hose - Copper Tube versus Hose

Not sure why you don't just use this with compression fittings...less chance of weak spots and corrosion issues. Simple...no special tools...???

Teleflex Hydraulic Nylon Tubing

What I think many don't understand is that it is NOT high pressure hydraulics...fancy hoses and special fittings NOT required.
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Old 05-03-2012, 15:09   #35
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Re: Hydraulic Hose - Copper Tube versus Hose

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Not sure why you don't just use this with compression fittings...less chance of weak spots and corrosion issues. Simple...no special tools...???

Teleflex Hydraulic Nylon Tubing

What I think many don't understand is that it is NOT high pressure hydraulics...fancy hoses and special fittings NOT required.
I'm all for hose over copper tube - much easier.
But requires 5/8" tube or 5/8" inside diameter hose.1000psi burst 5000psi.
That tube is 3/8".
Hose and Tubing Teleflex Marine
Going around in circles with what is ok for this system and what is not.
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Old 05-03-2012, 15:49   #36
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Re: Hydraulic Hose - Copper Tube versus Hose

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Thanks for the info...think I will leave this project off my list.

I've sailed a few Mantas, but never worked on their steering system: do they have an Ackerman compensation installation?
No, Manta uses a pull-pull cable system.

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Old 05-03-2012, 19:00   #37
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Re: Hydraulic hose - copper tube versus hose

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Allez is exactly right abut using refrigeration grade copper tubing. The wall thickness is greater than household tubing you would use for water...
FWIW: Type K has the heaviest wall section of the four types of pressure rated copper tubing, heavier than Type ACR (refrigeration).

http://www.copper.org/publications/p...e_handbook.pdf
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Old 05-03-2012, 19:34   #38
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Re: Hydraulic Hose - Copper Tube versus Hose

Do a rough measurement on how much hydraulic hose you need.Add 10%
Buy the hose on the web and fittings at your local Nappa/auto parts store.Just cut to length and plus a little and label what fitting you need.Most stores do not charge for crimping fittings you bought there.If they Tie wrap after install.Easy and is cheaper/essayer than copper to install.less connections so less chance of failure.
My Thoughts
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Old 06-03-2012, 05:06   #39
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Re: Hydraulic hose - copper tube versus hose

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FWIW: Type K has the heaviest wall section of the four types of pressure rated copper tubing, heavier than Type ACR (refrigeration).

http://www.copper.org/publications/p...e_handbook.pdf
It may require refrigeration tube as it is dehydrated...
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Old 06-03-2012, 05:11   #40
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Re: Hydraulic Hose - Copper Tube versus Hose

I spoke to the Teleflex engineer.
He highly recommends refig tube - flare nuts etc.
And reucedr at each component from 5/8" flare to 1/2" flare or 3/8" NPT(or whatever it is).
So its settled I will do it. It is a lot of bends and flares, so may order better flaring tool and bend on-line rather than the el-cheapo at home depot...

It says a lot when Teleflex sells hose (probably at great profit), but recommends using copper, which they do not sell...
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Old 06-03-2012, 05:11   #41
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Re: Hydraulic Hose - Copper Tube versus Hose

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Do a rough measurement on how much hydraulic hose you need.Add 10%
Buy the hose on the web and fittings at your local Nappa/auto parts store.Just cut to length and plus a little and label what fitting you need.Most stores do not charge for crimping fittings you bought there.If they Tie wrap after install.Easy and is cheaper/essayer than copper to install.less connections so less chance of failure.
My Thoughts
Mark
thanks for the info - will go with copper for now...
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Old 09-03-2012, 02:47   #42
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Re: Hydraulic Hose - Copper Tube versus Hose

I have ordered all the fittings - many 3/8" MPT x 5/8" flare and 1/4" MPT x 5/8" flare.
Also four 2' hoses from Teleflex to go from cylinders to copper tube.
Bought good bending tools, cutters, and flaring set.
Will buy copper tube at home depot.
And I will probably get the yard to mount the cylinders.
They want to remove existing quadrants (too week apparently) and install "bought" tiller at the correct length.
What do you think?
And what are the issues with mounting the rams?
thanks
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Old 14-04-2012, 22:14   #43
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Re: Hydraulic Hose - Copper Tube versus Hose

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Originally Posted by AllezCat View Post
thanks for those pics.
Gives me the inspiration to get to it.
Researched fittings etc last night - price is getting high if I order all from teleflex -and still plenty of other stuff. Will decide if I can wing it all with copper and flare nuts. Seems most of the gear has 3/8" FPT fittings, some with 1/2" flare fittings.
So will have to convert to 5/8".
thanks
Another advantage I just thought of regarding connecting the bleeder valves on the RAM(s)together with a short section of hose -- If you open the bleeder valves then you have effectively depressurized the system. This allows you too steer using an emergency tiller without disconnecting the rams ( with them connected and pressurized it is practically impossible to turn the rudders manually). I've tested this on my configuration.
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