Passover bending

[simondjuk]

Hi

Im still on the very basics at the moment so please bear with me. Ive attached a picture (below) on what im trying to explain and work out so im hoping that is going to help someone answer me.

Ignoring the radiator feed and return, just look at the hot and cold. Im not bothered about the height from the floor either. Is there any easy way to work out the angles of the bends? If I want to run a pipe from the Tee on the hot, over the rad feed and return, how would I (assuming the centre to centre point is 100mm on each pipe)
a) measure the length of pipe over the rad hot and cold
b) measure the angles needed to bring it back to the wall and also to the Tee

I would imagine the angle from the rad feed would be 45 degrees and the angle back to the wall would also be 45 degrees.

What about the angle over the rad return to the Tee? Is that also 45 degrees?

Apologies if this doesnt make much sense, I know what I want to explain but putting it in to words is somewhat difficult.

I do know about bending with regards to measuring back depending on the angle and size of pipe, im happy with that, im just slightly baffled about how to pull these bends (in the picture) accurately each time. Is there a simple way of doing it and im looking into it too deep?

By all means, feel free to ask me anything that I might have missed. As I say im only on the basics so theres a good chance some info you need is missing.

 

[Simon F]

looks like a bay at a college? the angles are not as much as you suggest, more like 22.5

 

[Simon F]

try this link http://www.ukcopperboard.co.uk/literature/pdfs/Installation-Tips/Bending-machine.pdf

 

[mikegas]

This guys got a few vids that might help you learn http://www.youtube.com/watch?v=d4BOIHGXFAw&feature=youtube_gdata_player

 

[Noxer]

Most of it is just buy eye , just bend a 45, x2 then a little kick on each pipe into the tee

 

[PlumbBobBob]

ats? do a search on youtube for the tom plumb as well

 

[anz]

I've found this to be the best notes to have for bending, when looking for accuracy.

 

[stevetheplumber]

looks like a tee and street elbow is needed to me

 

[kirkgas]

a wee tip when trying to work out or check an angle required is to bend a bit of solder, (wire not flat bar) into the required shape, and use this as a template when bending the pipe, especially helpful when bending bends in different directions, if you make a swee solder wire template and have that beside you when you are bending the different bends its easy to see what way to turn the preformed bit to bend the second/third/fourth bends, it does become second nature but while you are still getting to grips with it then it can help, college models usually require 22.5/45/90 degree bends, but in the real world if you are bending 2 or 3 pipes in a run it is critical that they are all the same as each other rather than a specific angle

 

[Guest123]

Try that Tom's Tips on Youtube, the guy has a few crossover bending vids worth a look at if your a beginner.

Try the Polski method and just use a big flexi.

 

[kirkgas]

I've found this to be the best notes to have for bending, when looking for accuracy.

i find these work well on hand machines rather than tripods, not sure why, and also if you are using "your" machine all the time once you have mastered the slight alteration your machine requires from these standard measurements then the bends are perfect everytime

 

[stevetheplumber]

its amazing how complicated something you do all the time by eye looks when its written down

 

[Guest123]

I use those bendy ties that you get in the Poundshops, They're just under 15mm thick and easily bend by hand to take back to the bender. I still use bending springs for small quick bends but my knees can't take it so much.

 

[dontknowitall]

£5.69 from Wickes:

 

[PlumbBobBob]

£5.69 from Wickes:

View attachment 4633

thats cheating lol