Large diameter copper tube

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Large diameter copper tube

This topic has 14 replies, 11 voices, and was last updated 12 August 2017 at 13:13 by Ian S C.

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11 August 2017 at 12:16 #311477
Roger Clark
Participant
@rogerclark
Does anyone know of the best price for 7.25" copper tube about 30" long and would 1/8" be strong enough for a loco boiler?
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11 August 2017 at 12:16 #29735
Roger Clark
Participant
@rogerclark
11 August 2017 at 12:31 #311480
Dave Halford
Participant
@davehalford22513
try Blackgates, but 71/4" pipe may not exist which may leave you with design issues.

Fizzy on here makes boilers
11 August 2017 at 13:44 #311486
Thor 🇳🇴
Participant
@thor
M-Machine lists 7" C106 tube in their metals catalogue, have you asked them for a price?

Thor

Edited By Thor on 11/08/2017 13:47:31
11 August 2017 at 15:25 #311498
Roger Clark
Participant
@rogerclark
Posted by Thor on 11/08/2017 13:44:42:

M-Machine lists 7" C106 tube in their metals catalogue, have you asked them for a price?

Thor

Edited By Thor on 11/08/2017 13:47:31

Thanks Thor, query sent.
11 August 2017 at 22:14 #311547
D.A.Godley
Participant
@d-a-godley
Try P&P Non-Ferrous Metals tel 01384 868080 . They a have a large range of tube and I found their prices quite reasonable .

I have no connection other than being a satisfied customer .
11 August 2017 at 22:23 #311548
duncan webster 1
Participant
@duncanwebster1
7.25" * 10 swg should be OK at 100 psi, but discuss with your club boiler inspector before committing a large amount of money. If you intend to operate in public you will need insurance, and the best way is to join a ME club and use their's. Sounds like this isn't a standard design or you wouldn't be asking the question.
12 August 2017 at 00:07 #311556
nigel jones 5
Participant
@nigeljones5
pressure no problem but I dont know of anyone who sells this size …might need it rolled
12 August 2017 at 00:10 #311557
nigel jones 5
Participant
@nigeljones5
blackgates stock 6" then 8 1/4"
12 August 2017 at 05:53 #311567
Brian John
Participant
@brianjohn93961
What is large diameter copper pipe of that size usually used for ?
12 August 2017 at 07:56 #311571
JasonB
Moderator
@jasonb
Posted by Brian John on 12/08/2017 05:53:51:

What is large diameter copper pipe of that size usually used for ?

There is a clue in the question:

Does anyone know of the best price for 7.25" copper tube about 30" long and would 1/8" be strong enough for a loco boiler?

It is just a larger version of the copper tube you use for your models Brian.
12 August 2017 at 08:26 #311577
Mike Poole
Participant
@mikepoole82104
I am sure it is not manufactured to satisfy the demand from the model market, it must have uses in the industrial and scientific equipment market but I can't say I have seen it used.

Mike
12 August 2017 at 12:34 #311602
Ian S C
Participant
@iansc
7.25" isn't available here, the size goes from 6" to 8", and then 10" 12". There seems to be nothing in NZ that is near 7", and I think the range of sizes held by my local supplier would be fairly international, so you may need to roll your own.

Ian S C
12 August 2017 at 12:54 #311607
Nicholas Farr
Participant
@nicholasfarr14254
Posted by Brian John on 12/08/2017 05:53:51:

What is large diameter copper pipe of that size usually used for ?

Hi, I have a short piece of 4" copper pipe that came from a canning factory, which no longer exists, which I believe carried water for food processing. I dare say that larger sizes were also used and I suspect many food factories had large copper pipes at one time, and maybe even Whisky producers would use such sizes.

Regards Nick.
12 August 2017 at 13:13 #311612
Ian S C
Participant
@iansc
Been having a look around, and you may find 180 mm dia copper tube, the place I looked had a minimum order of 500kg, but someone must have 30 inches of it.

Ian S C
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