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Date: 30 Jul 2006 12:39:55
From: cpl593h
Subject: Copper pipe/fittings for boiler wrap
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I plan on adding a boiler preheat wrap to my Isomac Zaffiro soon. It
has an 800mL cylindrical boiler and the wrapping itself shouldn't be
too difficult. I've never done anything with copper piping before so I
really don't know what I should be looking for as far as hardware goes.
What diameter pipe should I buy, and what kind of fittings am I going
to need?
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Date: 31 Jul 2006 03:47:51
From: Barry Jarrett
Subject: Re: Copper pipe/fittings for boiler wrap
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On 30 Jul 2006 12:39:55 -0700, "cpl593h" <CPL593H@gmail.com > wrote:
>I plan on adding a boiler preheat wrap to my Isomac Zaffiro soon. It
>has an 800mL cylindrical boiler and the wrapping itself shouldn't be
>too difficult. I've never done anything with copper piping before so I
>really don't know what I should be looking for as far as hardware goes.
>
>What diameter pipe should I buy, and what kind of fittings am I going
>to need?
learn how to solder pipe, first.
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Date: 31 Jul 2006 08:43:16
From: Eric Svendson
Subject: Re: Copper pipe/fittings for boiler wrap
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Hey CPL -
Another Adventure ?
Certainly concur with Andy S. - get 1/4" OD soft copper tubing from your
local Home Depot or similar and you could try adaptor fittings from these
guys:
http://www.omega.com/pptst/BRLK_SSLK.html
The tubing needs to be wrapped tightly against the boiler skin and I'm
thinking it may be advantageous to wrap the tubing around a "mandrel"
slightly smaller in diameter than the Z boiler, e.g. 4" PVC pipe. Then
slide the boiler into the coil - maybe more trouble than its worth. The
tubing will have some spring to it but not much. Obviously you could wrap
directly around the Z boiler and be done with the coiling and that might be
OK.
You need to isolate the pump outlet from the tubing with a short section of
hose (again, a potential fittings nightmare). Send me some pictures of the
Z's internals and I may be able to provide some tips but it's the
configuration of the fittings and adaptors that will provide the headache
both on top of your shoulder and in your right rear pocket.
Eric S.
"cpl593h" <CPL593H@gmail.com > wrote in message
news:1154288394.990837.26410@b28g2000cwb.googlegroups.com...
>I plan on adding a boiler preheat wrap to my Isomac Zaffiro soon. It
> has an 800mL cylindrical boiler and the wrapping itself shouldn't be
> too difficult. I've never done anything with copper piping before so I
> really don't know what I should be looking for as far as hardware goes.
>
> What diameter pipe should I buy, and what kind of fittings am I going
> to need?
>
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Date: 31 Jul 2006 08:59:02
From: Andy Schecter
Subject: Re: Copper pipe/fittings for boiler wrap
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cpl593h wrote:
> I plan on adding a boiler preheat wrap to my Isomac Zaffiro soon. It
> has an 800mL cylindrical boiler and the wrapping itself shouldn't be
> too difficult. I've never done anything with copper piping before so I
> really don't know what I should be looking for as far as hardware goes.
>
> What diameter pipe should I buy, and what kind of fittings am I going
> to need?
>
1/4" OD soft copper.
You can use brass compression fittings. The interesting part is deciding what
the threaded part of the fitting should be, because the Zaffiro undoubtedly
uses British Pipe thread and the typical fittings you'll get are (US) National
Pipe Thread. Sometimes you can make a British/NPT joint leakproof with lots of
teflon tape, other times you have to use an adapter, sometimes it's best to
rethread the fitting to be compatible.
--
-Andy S.
http://www.flickr.com/photos/andy_s/sets/
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Date: 31 Jul 2006 09:48:05
From: Dan Bollinger
Subject: Re: Copper pipe/fittings for boiler wrap
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> 1/4" OD soft copper.
>
> You can use brass compression fittings.
Soft copper tubing is the way to go, as you say, but compression fittings are
not for soft copper. I know many people use them (including myself), but flared
fittings are what is recommended. Just so you know. Dan
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Date: 31 Jul 2006 16:07:09
From: Barry Jarrett
Subject: Re: Copper pipe/fittings for boiler wrap
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On Mon, 31 Jul 2006 09:48:05 -0400, "Dan Bollinger"
<danNObollinger@insightSPAMbb.com > wrote:
>but compression fittings are
>not for soft copper.
that's odd, as they've been used that way for decades.
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Date: 31 Jul 2006 12:37:29
From: Dan Bollinger
Subject: Re: Copper pipe/fittings for boiler wrap
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> >but compression fittings are
> >not for soft copper.
>
> that's odd, as they've been used that way for decades.
My mistake. I don't know what I was thinking about. Dan
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Date: 31 Jul 2006 16:39:51
From: Paul Monaghan
Subject: Re: Copper pipe/fittings for boiler wrap
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On Mon, 31 Jul 2006 12:37:29 -0400, "Dan Bollinger"
>
>My mistake. I don't know what I was thinking about. Dan
Maybe that flare fittings require soft copper?
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Date: 31 Jul 2006 15:18:38
From: Dan Bollinger
Subject: Re: Copper pipe/fittings for boiler wrap
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>>My mistake. I don't know what I was thinking about. Dan
>
> Maybe that flare fittings require soft copper?
Of course they do, but not exclusively so, which is what I mistakenly said.
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Date: 31 Jul 2006 13:59:08
From: Craig Andrews
Subject: Re: Copper pipe/fittings for boiler wrap
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"Dan Bollinger" <danNObollinger@insightSPAMbb.com > wrote in message
news:jMWdnXmXyP-mrFPZnZ2dnUVZ_vudnZ2d@insightbb.com...
>> >but compression fittings are not for soft copper.
>>
>> that's odd, as they've been used that way for decades.
>
> My mistake. I don't know what I was thinking about. Dan
Maybe you were thinking about flared brake line fittings, they're under
very high hydralic brake fluid pressure..
http://images.google.com/images?sourceid=navclient&ie=UTF-8&rls=GGLD,GGLD:2004-01,GGLD:en&q=Flared%20Brake%20Lines&sa=N&tab=wi
Craig.
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Date: 01 Aug 2006 02:02:49
From: Barry Jarrett
Subject: Re: Copper pipe/fittings for boiler wrap
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On Mon, 31 Jul 2006 13:59:08 -0400, "Craig Andrews"
<alt.coffee@deletethis.rogers.com > wrote:
>Maybe you were thinking about flared brake line fittings, they're under
>very high hydralic brake fluid pressure..
and those are double-flare, too.
--barry "got the tool"
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Date: 31 Jul 2006 22:16:30
From: Craig Andrews
Subject: Re: Copper pipe/fittings for boiler wrap
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"Barry Jarrett" <barry@rileys-coffee.com > wrote in message
news:5hdtc29mfbn7uq30a5ogt0182bltto14m8@4ax.com...
> On Mon, 31 Jul 2006 13:59:08 -0400, "Craig Andrews"
> <alt.coffee@deletethis.rogers.com> wrote:
>
> >Maybe you were thinking about flared brake line fittings, they're
> >under
> >very high hydralic brake fluid pressure..
>
> and those are double-flare, too.
>
>
> --barry "got the tool"
Right you are Barry, the inner flared lip. I haven't done that in about
31 years, LOL!!
{:-D
Craig.
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Date: 31 Jul 2006 11:10:49
From: DavidMLewis
Subject: Re: Copper pipe/fittings for boiler wrap
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cpl593h wrote:
> I plan on adding a boiler preheat wrap to my Isomac Zaffiro soon. It
> has an 800mL cylindrical boiler and the wrapping itself shouldn't be
> too difficult. I've never done anything with copper piping before so I
> really don't know what I should be looking for as far as hardware goes.
>
Um, isn't the Zaffiro a single-boiler machine? If it is, depending on
how well Isomac did their fluid-flow homework, a preheat wrap may not
be worth the trouble. Normally, you see that on double-boiler or HX
machines, where the preheat thermal energy is coming from someplace
other than the brew boiler.
Best,
David
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