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Post by cluelesskarl on Apr 27, 2020 14:30:04 GMT
Or as one of Toms videos says, "You don't get owt for nowt!"
Working for a scrappie, I got to by a lot of copper pipe. Cheaply!  However... on starting to pipe up the rads, 15mm olives won't fit over, despite cutting a fresh end and cleaning. Nor will the pipe fit in the bender. Fuck.  Fortunately, only a couple of lengths are "duff". So far... I've not tried the 22 yet.
Using a tape and failing eyesite, (my micrometers are at work), they all seem 15mm, although the duff ones are a heavier gauge.
It's not a problem, yet, I'll weigh them back in! 
Long post to ask you knowledgeable people what (pipe  ), you think I have. |
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Post by DIYDafty on Apr 27, 2020 15:13:06 GMT
Could it be imperial pipe? I know you can get different olives for them - can't remember if slightly bigger or smaller.
Also, don't forget not to use pipe that's been on heating for your drinking water. Not sure if there is always a way to tell? My heating pipes are fucked with sludge so its dead easy to see a lot of staining.
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Post by rocketmanbkk on Apr 27, 2020 16:27:55 GMT
You’re using 2nd hand pipe? Has the pipe been used or is it new pipe?
It’s a gamble if you ask me as it might be full of holes.
It’s like going to do a job for someone & they say I’ve got loads of screws in the shed & they bring back an old biscuit tin full of rusty screws of different sized! Errr .. no thx mate, I use new screws.
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Post by tomplum on Apr 27, 2020 17:42:04 GMT
It might be the old, what we called council pipe, the council clerk of works always demanded 1/2 inch thick walled copper, getting 15mm fittings on it was hard to do, it could be that,  |
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Post by cluelesskarl on Apr 27, 2020 19:43:18 GMT
Most of the pipes are 3m lengths, no sign of being used. Also, makers/suppliers sticky tape wrapping a lot of them together. Just a few errant ones leading me to ask questions.
I will use anything in a pinch, don't we all?, but I will use the best I can, to do a good job, whosoever it is for.
I've made a pressure tester, thanks to one of Toms videos, so will see about leaks. When I get to that point! That was what I was thinking Tom, but I don't believe they are that old. Though what do I know? |
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Post by tomplum on Apr 27, 2020 20:14:22 GMT
if they are the old council copper pipes, I'd take them to a scrap yard you're not know at, and weigh them in, You'll get top dollar because of the thickness, then buy some cheaper copper to do your job, |
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Post by dickpuller on Apr 27, 2020 21:08:52 GMT
Did some Hydraulic Pipe Fitting back in the late 70’s. Heavy Duty 1/2” imperial copper pipe, it was too big for 15mm fittings, as we nicked a load for Homers. Good Weigh In though👍👍👍
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Post by arfur chrysaik on Apr 27, 2020 21:56:51 GMT
Or as one of Toms videos says, "You don't get owt for nowt!"
Working for a scrappie, I got to by a lot of copper pipe. Cheaply! However... on starting to pipe up the rads, 15mm olives won't fit over, despite cutting a fresh end and cleaning. Nor will the pipe fit in the bender. Fuck. Fortunately, only a couple of lengths are "duff". So far... I've not tried the 22 yet.
Using a tape and failing eyesite, (my micrometers are at work), they all seem 15mm, although the duff ones are a heavier gauge.
It's not a problem, yet, I'll weigh them back in! 
Long post to ask you knowledgeable people what (pipe ), you think I have. Probably 5/8" refrigeration copper tube you have about 15.9mm Dia. and heavier gauge than table X, also comes in 3M lengths. |
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Post by crowsfoot on Apr 28, 2020 6:21:16 GMT
Sounds to me like Arfurs nailed it again.
I've occasionally come across this larger than 15mm copper before.
Once it was in a big restaurant that was opening up in 1hrs time with the mains cut into.
I had to open up the larger diameter 15mm more with with a socket former (with a high degree of difficulty) to get the 15mm to join it. Phew!!
NB Imperial half inch copper is only very slightly larger than 15mm. It normally only takes a tap with the hammer to get them to fit.
Does anyone remember the 1/2" to 15mm adaptors that were specially made when we went metric that nobody ever needed?
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Post by cluelesskarl on Apr 28, 2020 10:29:48 GMT
Nice one Arfur! I will be weighing the scrap in! |
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Post by arfur chrysaik on Apr 28, 2020 15:29:49 GMT
Sounds to me like Arfurs nailed it again. I've occasionally come across this larger than 15mm copper before. Once it was in a big restaurant that was opening up in 1hrs time with the mains cut into. I had to open up the larger diameter 15mm more with with a socket former (with a high degree of difficulty) to get the 15mm to join it. Phew!! NB Imperial half inch copper is only very slightly larger than 15mm. It normally only takes a tap with the hammer to get them to fit. Does anyone remember the 1/2" to 15mm adaptors that were specially made when we went metric that nobody ever needed? Still get them Tappy, bought by people that dont have a hammer,
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Fortunately, only a couple of lengths are "duff". So far... I've not tried the 22 yet.
), you think I have.
