If you do the sums you find that the differences between the two are insignificant in most situations. The people with the strongest prejudices are usually the ones with the least idea how to do the sums and use the results!
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Pipe bender or elbows. Which is best?
- Thread starter InTheBeginning2007
- Start date
heard they don't learn bending anymore, you may have a problem finding staff if that is true
not being funny, do you really think there is a measurable technical advantage to bends?
heard they don't learn bending anymore, you may have a problem finding staff if that is true
not being funny, do you really think there is a measurable technical advantage to bends?
As I understand it, a bend = 300mm of strait pipe resistance and an elbow = 500mm, so there is definately a big advantage to bends.
http://www.ukcopperboard.co.uk/literature/pdfs/Installation-Tips/Pipe-sizing-basic-principles.pdf
http://www.ukcopperboard.co.uk/literature/pdfs/pub-150-copper-tubes-in-domestic-heating-systems.pdf
Who wants to use the internet when there's a good argument brewing?
http://www.ukcopperboard.co.uk/literature/pdfs/pub-150-copper-tubes-in-domestic-heating-systems.pdf
Who wants to use the internet when there's a good argument brewing?
That is for methane at 0.02 bar. I would hazard a guess that aerodynamics at 0.02 bar are different from liquid flow conditions at 5 bar.
It is also dependant on the flow speed, if the gas or liquid is flowing under transitional conditions, you will find that the figures alter drastically from those for laminar flow
InTheBeginning2007 said:
if your pipe design is fussy about a few 200mm lengths of pipe, you're doing it all wrong.
What do you think the head loss is in that length of pipe at domestic flow rates actually is?
Any decent plumber can find it, by the way.
S
sanj.varah
is that stainless steel or aluminium silicone bender?
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Our old firm employed a company to lagg and label all pipework in either foil wrapped insulation or metal sheathed insulation.
As a company now we still use other contractors for lagging unless in domestic situations.
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