HOW TO BEND COPPER PIPE – OFFSET – Plumbing Tips

Posted on: January 27, 2017 by in Plumbing Videos
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HOW TO BEND COPPER PIPE – OFFSET – Plumbing Tips


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This video will guide you through the minefield of bending copper pipe offsets. We cover two sizes, 40mm and 80mm. From marking the pipe and measuring to bending the pipe and making sure it is straight.

Welcome to today’s Plumberparts.co.uk video. I am bursting with excitement today, because I’m gonna show you guys how to do an offset a really, really easy way. Now, you might be able to look just over here, you seein’ all this stuff here? This is a bender, this is a 15 mil former, and this is a bit of copper pipe that we’re gonna bend 15 mil size. We’ve already gone over this in our earlier video, about 90-degree bends. I’ll put a link to that at the end of the video or in the description below. There’s one thing that you can see here, that is not gonna be part of this video, it is this vice. Vices do belong on any videos about bending copper pipe. Cause if you wanna learn how to do bending the copper pipe, onsite, you aint’ gonna have one of these, unless you’re really lucky. If you’re in a house upstairs and your vice is in the van, I will bet every bit of money my cat has ever earned that you won’t go to your van and get it because it’s a hassle. So anyway, we’re gonna find out now how to actually bend a set without a vice and I’m gonna use two rulers to do it. If you’ve got two rulers, this is easy okay? It’s really easy, people get it wrong all the time, how to do sets, No, it’s easy. Let’s go, you’re gonna enjoy every minute of it, and I’ve clicked to early, I’ll click again. Hold tight!
The first bend we’re gonna do today, let’s set this to a 40-millimeter offset. First thing you do is get your pipe in your bender. Now because we’re gonna be doing a 40-mil offset, which a reasonable amount, we will do a bend of 45-degrees. Which means the pipe will eventually come round and stick out along here like that. So before we begin we just pop our former in here. Right, and then get ready to bend, I’m a get my pen at the ready I’m gonna bend a 45-degree, so round to there. So I’ve got a 45-degree bend just here, okay so it’s just running along this line here. Just so we know how far I actually pulled this I’m a get a pen and I’m gonna mark on the bottom on the rear side of my 22-mil former. Just gonna run a line across there. And then also sometimes I’ll put a little arrow on it so I know that’s the one I’m going on.
Right, now move this back, pop out our former take our bit of pipe out, and take this away. This is really easy, this bit. Usually, I’ll get my pipe and actually lay it on this piece here. Right, so what I do now is, we’re gonna do a 40-mil set. So, I lay my pipe, I get my two rulers, I put one on top and one on the bottom, okay? Now you wanna hang your head right over the top, so you’re looking right over it. And just keep pushing that up until reads about 40-mil. Alright, to make sure we’re parallel, here and here, Throw this back there, 40-mil there, 40-mil there, lovely. Using your pen, mark. Have a look over here, hang your head over here. And take note of where this runs there and there. And that will run through the pipe like that, and hang your head right over the top, just make a small mark on the pipe just there like that.
Now we get back out our trusty bender, pop our pipe back in, now you see this mark here that we made a minute ago? We’ll just push that so it’s just on there. And that will just be touchin’ the top of our runner bar, just here. Now just nip that up, when I say nip that up I just mean just exert a tiny little bit of pressure on that so it stops this pipe from wiggling about. Now most folks onsite, this is what you’re gonna see them doing okay for this bit. They’ll rest the normal arm, the arm that you don’t move, on their hip. And they’ll have a look down the pipe, and they’ll just lift this off, and they’ll just make sure their pipe is in parallel line with the side of the former. So when you don’t do the bend, it doesn’t wobble when it’s on the table. So let’s do a little wobble table-test sometimes. A lot of other people will grab their ruler and lay that across here, and then they’ll have a look and try and see that it’s parallel. It’s lookin’ pretty parallel. A lot of people also look end-on, to make sure that it’s nice and straight. We just need to move this back, just a little. Just so it’s just in line with the top of that there. And then we’re gonna bend it round so this part of the arm here, goes to the line that we’ve drawn just there.

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