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Custom copper lines
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roasted_been
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roasted_been
Joined: 20 Mar 2005
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Posted Wed May 25, 2005, 10:24am
Subject: Custom copper lines
 

Does anyone know where I can get custom copper lines made with fittings that will work in Italian espresso machines? I believe most are metric. For example; I want to replace the teflon line from the vibe pump to the boiler in my Silvia with a copper line.

Thanks!
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twomartinis
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twomartinis
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Posted Wed May 25, 2005, 10:44am
Subject: Re: Custom copper lines
 

Why? You will rigidly couple the pump noise into the boiler while conducting heat towards the pump.

Now if you're going to wrap the boiler for preheating, that's different. Standard 1/4" line works fine. Keep that piece of teflon tubing though...

 
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chance
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Posted Wed May 25, 2005, 10:48am
Subject: Re: Custom copper lines
 

I was wondering the same thing, only for the purpose of cutting existing copper lines, insterting a vacuum relief valve and refitting the ends to attach - or fabricating a whole new line with the valve...

So I second the question!
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roasted_been
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roasted_been
Joined: 20 Mar 2005
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Location: Canada
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Espresso: Rancilio Epoca semi-auto
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Posted Wed May 25, 2005, 12:20pm
Subject: Re: Custom copper lines
 

I don't have a problem with vibe pump noise as I use a Procon rotary pump. I am using the original teflon line and want a copper line so I can connect a Tee and a gauge if I can find someone who can make custom lines.
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nmayweather
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Posted Wed May 25, 2005, 12:33pm
Subject: Re: Custom copper lines
 

why custom lines?

you can more cheaply, quickly, and easily just use available piping and standard fittings adapters (ie, a coupler thats metric on one side and english on the other -- they're cheap and readily available)
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roasted_been
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roasted_been
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Location: Canada
Expertise: I like coffee

Espresso: Rancilio Epoca semi-auto
Grinder: Mazzer Mini
Roaster: Gene Cafe
Posted Wed May 25, 2005, 12:50pm
Subject: Re: Custom copper lines
 

Using a line made to fit the existing fittings makes for a cleaner installation. Using adapters results in more connections and the more connections you have the greater the chance of leaking.

You say adapaters are readily available. The only limited supplier I found is McMaster-Carr. Sometimes you have to use a couple of adpaters to get the final fitting you want which results in what I said above.
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nmayweather
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Posted Wed May 25, 2005, 1:58pm
Subject: Re: Custom copper lines
 

Odd - i've seen adapters to/from virtually every sizing -- although thats when i haven't looked for them, and finding things you're not looking for is always easier

what about finding an approximate fitting, and then having a local metalshop drillout the fitting to an exact fit then weld it into place?

you can also just try and find ready-made parts for what you want.  i'm sure another mfg has the item that you want as a stock item
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handcannon
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Posted Thu May 26, 2005, 12:19am
Subject: Re: Custom copper lines
 

RB: be aware of the possible downside of more metal fittings:  galvanic corrosion.  This is something we run into a lot on our R&D plants that mix english and metric fittings with various tubing materials.

 
"Of all the things I've lost, I miss my mind the most."  A. Brilliant
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Michael_Teahan
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Michael_Teahan
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Posted Sat May 28, 2005, 11:07am
Subject: Re: Custom copper lines
 

Getting fittings aren't a problem, but keeping the teflon might be a good idea.  There are tees and fittings available for them in metric sizes in the U.S..

The lines are metric, but you  can usually make the fittings adapt to american pipe with a bit of tape.

WHen I get to the office on Tuesdat, I'll get the number of the supplier of these fittings.

Michael
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calblacksmith
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calblacksmith
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Roaster: gave it a try, decided no
Posted Thu Apr 29, 2010, 5:42am
Subject: Re: Custom copper lines
 

I agree with keeping the Teflon lines, adding a ridged line only complicates things with noise and vibration not to mention fatigue on the lines and joints and the possible leak problems that go along with these issues.

 
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Anything I post is personal opinion and is only worth as much as anyone else's personal opinion. YMMV!

Feed the newbs, starve the trolls and above all enjoy what you drink!
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