Is it possible to bend a PP pipe with just a heat gun? Need a long gentle bend, not a sharp angle at all.
I spontaneously say no... You won't get it evenly warm enough and there's a big risk that you'll instead get a crease.
There are 15-degree bends, but if it's a longer distance, you can bend the pipes a bit without creating a bend beforehand.
There are 15-degree bends, but if it's a longer distance, you can bend the pipes a bit without creating a bend beforehand.
@anders07 - with the pipe filled with sand, there shouldn't be any kink, when it comes to flexible materials? I was more wondering if PP can be heat-bent at all, since it is so hard in itself?
Yes, it is possible to "heat bend," but you probably won't succeed with a heat gun as it cools down as soon as you remove it. You need to get it quite hot (near melting point) and if it cools down a bit more on one side, it immediately creates a fold...
I have bent 50 mm pipes with so-so results, but a 110 pipe I wouldn't even attempt... A pipe isn't very expensive in itself, so it's just a matter of trying!
I have bent 50 mm pipes with so-so results, but a 110 pipe I wouldn't even attempt... A pipe isn't very expensive in itself, so it's just a matter of trying!
Yes, maybe it would be too weak with a heat gun.
If one had a huge pot, maybe one could arrange it with the pipe in boiling water : )
If one had a huge pot, maybe one could arrange it with the pipe in boiling water : )
If you do a little Googling, there are plenty of pages and videos on how to bend PVC and even ABS pipes. Whether it works on PP pipes is more unclear. As mentioned, it's just a matter of trying. If it doesn't, perhaps it's time to try with PVC and see if you can find it in a suitable size?
http://www.doityourself.com/stry/how-to-bend-an-abs-pipe#b
http://www.instructables.com/id/Bend-PVC-Pipe/
https://www.youtube.com/watch?v=-BYq6hENHsk
http://www.doityourself.com/stry/how-to-bend-an-abs-pipe#b
http://www.instructables.com/id/Bend-PVC-Pipe/
https://www.youtube.com/watch?v=-BYq6hENHsk
In this movie, they use compressed air (approximately 0.5 bar) to maintain the shape of the pipe when it is bent. If a longer section of a pipe needs to be heated, you can use infrared heaters at an appropriate distance above while simultaneously rotating the pipe. https://www.youtube.com/watch?v=aZ4U7XdTIFQ
How cool! Now I'm really eager to try this out....Pucco said:
As mentioned...is it possible to bend/shape just PP pipes? : )
Google "heat forming polypropylene" and you'll get quite a few results, for example: http://www.foamandform.com/technical-minutes/thermoforming/lets-thermoform-polypropylene http://www.ineos.com/Global/Olefins...tion/ineos_polypropylene_processing_guide.pdf
It seems to work well, but it's a bit trickier with the temperature compared to other plastics.
It seems to work well, but it's a bit trickier with the temperature compared to other plastics.
The examples above were for narrower pipes. I need to get the right angle on a 110 mm drainage pipe for rainwater, not high pressure. See photo. Blue line shows how it should go. T-pipes or just bends. It is not possible to use height differences, everything has to be on the same plane. Does anyone have experience with bending these kinds of pipes with heat? Maybe it's better to start from a piece of straight pipe filled with sand. View attachment 319986
Seems completely wrong...G gråsten said:
What angle do you have, you could set two bends after each other.
Then you have slip couplings.
And there are angled T's as well.
You should be able to solve it with 45-degree branch pipes combined with 15 or 30-degree bends.G gråsten said:
The pipe at the top of the image looks like a PP-pipe, they are generally more flexible than PVC pipes. If you can expose it a bit further, you should definitely be able to connect it all. Don't forget to buy a sliding sleeve if you can't move the horizontal pipe in the image.
