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Post by jack81007 on Apr 13, 2015 17:28:46 GMT
Hi all,
Planning a boiler build using 3mm sheet material,2 questions for the more experianced out there.
1. What material grade should the copper be C106?
2. What gauge should the fire tubes be? 10g to match the sheet material?
Thanks for your help in advance.
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Post by ejparrott on Apr 13, 2015 17:51:25 GMT
Depends a bit on what the boiler is, and whether it's to be silver soldered or TIG welded.
Tubes would not normally be as heavy as 10g, you'd have very small holes.
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Post by jack81007 on Apr 13, 2015 17:57:02 GMT
Boiler is to be soldered and the tube OD is 3/4 if that helps
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Post by Doug on Apr 13, 2015 18:23:26 GMT
Boiler is to be soldered and the tube OD is 3/4 if that helps The best thing to do is speak to a boiler inspector, pretty much every model club has at least one and they can give you pointers and tell you what they want to see. The main problem with building a boiler yourself is without getting it inspected at various points in the build process then it's very unlikely to be given a boiler cert. i have spoken to our club boiler inspector and he has asked to see my boiler in 4 stages of build so he is happy with the way it's put together. in a quick answer to your question though a 3/4 OD pipe would normally be about 20g in most boiler designs. |
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Post by ejparrott on Apr 13, 2015 18:37:05 GMT
10g gauge would be considered extremely heavy for a 3/4" flue unless it was very long. I would expect 16g at the most.
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Post by jack81007 on Apr 13, 2015 19:43:57 GMT
Thanks for the pointers guys,our club inspector is cruising the world at the moment and i think boiler tubes are the last thing we will be thinking about.
I built a boiler for LILLA a couple of years ago and had to get it inspected in stages.
cheers
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Post by cupalloys on Apr 14, 2015 7:46:32 GMT
Avoid the danger of embrittling the copper during silver soldering by using C103 or C106.
The problem occurs in oxygen bearing copper when the flame gets too close to the copper.
Keith
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Geoff
Hi-poster
Posts: 169 
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Post by Geoff on Apr 16, 2015 2:03:19 GMT
AMBSC Code specifies 0.9mm wall thickness up to 20mm tube diameter
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Post by Doug on Apr 16, 2015 17:47:49 GMT
20g is .91mm just sayin  enguage smug mode  |
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NickM
E-xcellent poster
Posts: 230
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Post by NickM on Apr 17, 2015 10:08:00 GMT
You should only engage smug mode if your spelling is perfect, otherwise you will get some smart-a**e like me correcting you!
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Post by Doug on Apr 17, 2015 12:17:32 GMT
as i proove almostt every day you can be a smart aarse and still be P1$$ poor at Gramour  list of famious dislexics Alexander Graham Bell. Thomas Edison. Albert Einstein. Michael Faraday. Leonardo da Vinci. Henry Ford. its all about how good your spell checker is! |
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Post by Deleted on Apr 17, 2015 13:24:10 GMT
as i proove almostt every day you can be a smart aarse and still be P1$$ poor at Gramour ::) list of famious dislexics Alexander Graham Bell. Thomas Edison. Albert Einstein. Michael Faraday. Leonardo da Vinci. Henry Ford. its all about how good your spell checker is! I wonder whether many inventors brains have developed a form of fuzzy logic processing capability . It would explain how they can quickly see viable problem solutions in the chaotic mass of input data that is every day life . It may also explain the dyslexia - if inventors think in fuzzy terms then the exactness of spelling has no meaning for them . |
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Post by Doug on Apr 17, 2015 15:19:39 GMT
I wonder whether many inventors brains have developed a form of fuzzy logic processing capability . It would explain how they can quickly see viable problem solutions in the chaotic mass of input data that is every day life . It may also explain the dyslexia - if inventors think in fuzzy terms then the exactness of spelling has no meaning for them . At the company I work for we have some VERY cleaver people who are not dyslexic so i dont see a link between it and intelegence. For me its kind of a word blindness you write something and it "looks right" but its actually wrong some times it works the other way round a word looks wrong when its right so you purposefully alter it, i certainly have gained nothing percepable from it other than finding out who the pedants are the really odd thing is numbers are fine. |
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Post by Deleted on Apr 17, 2015 18:00:36 GMT
I believe that there is a link with dyslexia and intelligence/creativity, I also believe that there are a lot of people who are dyslexic and don't even realise it...you also tend to find that those suffering from this(if indeed it is something to suffer from as personally I think it's a big advantage) are very good at maths but not so good at English and the written word. There are an awful lot of shall we say normal people who have no chance of creating anything no matter how hard they try or how much someone may train them. When I was a child such things weren't treated or even noted... you just got on, today there are too many labels given to people, i see this as a backward move within society.
Pete
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Post by simplyloco on Apr 17, 2015 18:59:37 GMT
SNIP When I was a child such things weren't treated or even noted... you just got on, today there are too many labels given to people, i see this as a backward move within society. Pete Agreed. I dislike particularly the use of the 'Special Needs' label, as it sends the wrong message to both giver and recipient. In my book the only people who are 'special' are the ones I love... John |
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Post by doubletop on Apr 18, 2015 8:16:05 GMT
And then there is question of autism and intelligence. Brilliant minds and hopeless people skills. www.webmd.com/brain/autism/high-functioning-autismHow many work colleague's have you had that fit that model? .....interesting but not a lot to do with boilers Pete |
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