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Will a 112-degree downpipe fitting solve my problem?
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- Lemon Quarter
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Will a 112-degree downpipe fitting solve my problem?
For years, our old square brown Hepworth downpipe on an outbuilding has blocked in a particular location, at a 90-degree bend.
Although that Hepworth range is no longer manufactured, various modern systems appear to be compatible.
The plan, such as it was, was to adapt the pipe work to take a different and more gradual routing, using 45-degree bends. (Two 45-degrees make a 90-degree bend.)
Nobody seems to manufacture these, though! I can see various 112-degree bends instead, however. Can they be made to do much the same thing? If not, has anyone any advice?
MDW1954
Although that Hepworth range is no longer manufactured, various modern systems appear to be compatible.
The plan, such as it was, was to adapt the pipe work to take a different and more gradual routing, using 45-degree bends. (Two 45-degrees make a 90-degree bend.)
Nobody seems to manufacture these, though! I can see various 112-degree bends instead, however. Can they be made to do much the same thing? If not, has anyone any advice?
MDW1954
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- Lemon Quarter
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Re: Will a 112-degree downpipe fitting solve my problem?
If this is rainwater downpipe I think this shows the answer
https://www.ebay.co.uk/i/261942573432?c ... gLHhvD_BwE
If it isn't please explain exactly what type of downpipe it is.
https://www.ebay.co.uk/i/261942573432?c ... gLHhvD_BwE
If it isn't please explain exactly what type of downpipe it is.
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- Lemon Half
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Re: Will a 112-degree downpipe fitting solve my problem?
In my book, those are 135 degree bends, not 45. But what the heck, they seem to be available in square sections.
https://www.google.com/search?q=135+deg ... +drainpipe
And for 90 degrees, https://www.google.com/search?rlz=1C1OK ... +drainpipe
BJ
https://www.google.com/search?q=135+deg ... +drainpipe
And for 90 degrees, https://www.google.com/search?rlz=1C1OK ... +drainpipe
BJ
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- Lemon Half
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Re: Will a 112-degree downpipe fitting solve my problem?
MDW1954 wrote:The plan, such as it was, was to adapt the pipe work to take a different and more gradual routing, using 45-degree bends. (Two 45-degrees make a 90-degree bend.)
A 45 degree bend would be much tighter and liable to block than 90 degrees.
Scott.
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- Lemon Quarter
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Re: Will a 112-degree downpipe fitting solve my problem?
Scott and bungeejumper,
Between you, you have solved my problem! Thank you. What I need are 135-degree bends.
Thanks, everyone. It looks like the problem is sorted.
MDW1954
Between you, you have solved my problem! Thank you. What I need are 135-degree bends.
Thanks, everyone. It looks like the problem is sorted.
MDW1954
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- Lemon Half
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Re: Will a 112-degree downpipe fitting solve my problem?
MDW1954 wrote:Between you, you have solved my problem! Thank you. What I need are 135-degree bends.
Actually after I said that I had a look at Google - sometimes these are called 45 degree bends, presumably measuring the angle from the horizontal. Not the way I was taught at school!
Scott.
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- Lemon Quarter
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Re: Will a 112-degree downpipe fitting solve my problem?
Just different ways of looking at it, although, to be pedantic, one could distinguish between a bend and an angle.
A straight piece of pipe isn't bent so you could say that the bend is 0 degrees. If you bend it 45 degrees, you get a 135 degree angle. If you ask for one at a builder's merchant, it is probably best (and might be cheaper) to ask for a 135 degree bend.
Julian F. G. W.
A straight piece of pipe isn't bent so you could say that the bend is 0 degrees. If you bend it 45 degrees, you get a 135 degree angle. If you ask for one at a builder's merchant, it is probably best (and might be cheaper) to ask for a 135 degree bend.
Julian F. G. W.
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- Lemon Quarter
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Re: Will a 112-degree downpipe fitting solve my problem?
jfgw wrote:Just different ways of looking at it, although, to be pedantic, one could distinguish between a bend and an angle.
A straight piece of pipe isn't bent so you could say that the bend is 0 degrees. If you bend it 45 degrees, you get a 135 degree angle. If you ask for one at a builder's merchant, it is probably best (and might be cheaper) to ask for a 135 degree bend.
Julian F. G. W.
If you don't have an account it will be expensive whatever you ask for!
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- Lemon Slice
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Re: Will a 112-degree downpipe fitting solve my problem?
jfgw wrote:Just different ways of looking at it, although, to be pedantic, one could distinguish between a bend and an angle.
A straight piece of pipe isn't bent so you could say that the bend is 0 degrees. If you bend it 45 degrees, you get a 135 degree angle. If you ask for one at a builder's merchant, it is probably best (and might be cheaper) to ask for a 135 degree bend.
Julian F. G. W.
You've hit the nail on the head (unless it's a headless nail of course).
Technically I think the item in question is an 'elbow'. In my experience such fittings for a pipe are most commonly referenced by their relationship to the default straight pipe (i.e. 0 degrees, not 180), therefore a fitting on a pipe that in effect puts a 135 degree angle on the pipe flow is usually referred to as a 45 degree elbow because it deviates the flow from the '0 degree' pipe by 45 degrees. In this case the terminology of school geometry is not quite the same as the terminology of pipe engineering.
Having said that you'll find plenty of places will know exactly what you mean if you say you want a 135 degree bend as most of them will be used to the confusion.
BH
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- Lemon Quarter
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Re: Will a 112-degree downpipe fitting solve my problem?
bionichamster wrote:
You've hit the nail on the head (unless it's a headless nail of course).
"Lost head" nail actually
Technically I think the item in question is an 'elbow'. In my experience such fittings for a pipe are most commonly referenced by their relationship to the default straight pipe (i.e. 0 degrees, not 180), therefore a fitting on a pipe that in effect puts a 135 degree angle on the pipe flow is usually referred to as a 45 degree elbow because it deviates the flow from the '0 degree' pipe by 45 degrees. In this case the terminology of school geometry is not quite the same as the terminology of pipe engineering.
BH
"Elbow" is generally used for any bend, but does vary from area to area (like slabs and flags). The tend to say 45 or 90 degree, because is it easier to say than "ninety two point five degree bend". A 90 degree bend from vertical would make the 'horizontal' pipe "horizontal", which is not good for flow and blockage prevention.
Paul
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