Plumbing Question

[john.banisky]

I have two parallel pipes 23 apart (set) and 35 feet (run). I need the formula to figure how long my connecting ppipe should be and what the connecting angles will be on each end of the connecting pipe.. I can not use sine or cosine in figuring the angles.

 

[stapel]

Wouldn't you just be using 90-degree elbows to make the connections?

As for the length of connecting pipe, this will probably vary with the diameter of the pipes involved.

(Keep in mind that this is a *math* forum, where pipes are "ideal" and have no thickness. If you're wanting real-world answers, you'd probably need to find a plumbing website.)

 

[The Highlander]

I have two parallel pipes 23 apart (set) and 35 feet (run). I need the formula to figure how long my connecting ppipe should be and what the connecting angles will be on each end of the connecting pipe.. I can not use sine or cosine in figuring the angles.

Further to what @stapel points out above (re pipes' actual 'thicknesses')
If my thoughts on what you're describing here are anywhere near the 'truth' then, at the very least, we would need a sketch (or probably even sketches from different viewpoints) to even begin to answer your question.

 

[Dr.Peterson]

I have two parallel pipes 23 apart (set) and 35 feet (run). I need the formula to figure how long my connecting pipe should be and what the connecting angles will be on each end of the connecting pipe.. I can not use sine or cosine in figuring the angles.

I have a little awareness of what you are talking about, having seen a few questions about pipefitting math years ago; but I'm not sure of all the terminology. Does "set" mean the distance between the parallel lines, and "run" the distance between the ends to be connected, as measured parallel to each of them? I found a picture that suggests this:



There are some tricky issues in doing these calculations, due to the reality of pipes; I found an interesting discussion of a related problem here.

But I don't know why you can't use sine and cosine, for a problem that in general can't be done without them! Can you explain your context?

Here is a page I found with a lot of the math (mostly trigonometry, but ignoring the tricky details that may not matter), here.

 

[The Highlander]

But I don't know why you can't use sine and cosine, for a problem that in general can't be done without them! Can you explain your context?

I suspect that, perhaps, s/he may mean that s/he doesn't know how to use sine & cosine, ie: has no knowledge/understanding of Trigonometry or lacks the confidence to apply some limited knowledge of that field?