[modeleng] Re: Superheater trouble
- From: "AndyA" <AndyA@xxxxxxxx>
- To: <modeleng@xxxxxxxxxxxxx>
- Date: Tue, 13 Nov 2007 18:20:05 -0000
Hi keith
Which bend are you trying to make, the tight one into the wet header or are
you trying to make the spear point? Stainless steel tube is what you want
for super heaters and the spear point should be TIG welded. You can silver
the tube into the wet header.
Save your effort though and buy one from Paul Gammon Technical Services. I
believe Blackgates and Polly may be agents.
There are a lot of arugments about wether they actually do anything. If you
want my opinion then on a loco that is worked hard passenger hauling then
they are worth having giving drier exhaust and much freer running.
Andy
----- Original Message -----
From: <Gmx22@xxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Monday, November 12, 2007 10:44 PM
Subject: [modeleng] Superheater trouble
Hi all, I don't normally write much here but do read with interest most of
your comments. I am getting on well with a simplex but can't seem to get the
super heater right. The people I have spoken to have two schools of thought.
1
because it has slide valves Don't use a radiant one something to do with wet
steam being better. make it out of copper. I have just come in from the
garage having turned another peace of copper tube into scrap, lots of
heating and
i just can't get the tight bend required to make it look neat. Other school
of thought is make it radiant using stainless and use thinner tubing 22g I
think. any thoughts on how to bent copper tube or where the hell do I get
stainless from, tried GLR and the guys a Polly. I have seen lots of super
heaters
made out of SS and look neat with perfect bends but nobody can tell me
where
they got the stuff.
I have a tube bender but the radius is not small enough and of course it is
metric 10mm and I am using 7/16 18g copper......... well I was! I know you
will probably think how has he got this far if he can't bend copper tube
but
things have gone very well up to this point, I just can't afford to keep
throwing copper in the bin.
Great site keep up the good work
Keith
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