SDR 26 Pipe, Burst and Collapse
SDR 26 Pipe, Burst and Collapse
(OP)
I am trying to find the burst and collapse pressures for 8" SDR26 pipe. The pipe is 160psi rated acording to spec sheets I have seen online but I am not sure if that is burst (presumeably) or collapse. I also don't know how this value was arrived at as I have found a spec sheet which quotes the Yield Strength at 7450. Could someone straighten this out for me please??
Thanks
Thanks





RE: SDR 26 Pipe, Burst and Collapse
Not sure exactly what kind of spec sheet you are looking at for the latter, but the "7450" could be about the wall hoop or tensile stress level that could indeed cause a tensile burst or failure in psi (with rather rapid, not slow increase of pressure in the pipe).
Hope this helps.
RE: SDR 26 Pipe, Burst and Collapse
Not sure where the 160 psig comes from but I wouldn't believe it.
Burst pressure is a number that you can't really calculate since it is absolutely temperature and batch dependent. There are equations for collapse pressure, but I don't have them handy.
David Simpson, PE
MuleShoe Engineering
"Belief" is the acceptance of an hypotheses in the absence of data.
"Prejudice" is having an opinion not supported by the preponderance of the data.
"Knowledge" is only found through the accumulation and analysis of data.
RE: SDR 26 Pipe, Burst and Collapse
ASTM D2241 PRESSURE PVC PIPE is the standard. The burst pressure is 500 psi. Here is the link to the data from one manufacturer with the appropriate ASTM standards listed:
http://www.jmeagle.com/pdfs/2008%20Brochures/IPS%2...
RE: SDR 26 Pipe, Burst and Collapse
David Simpson, PE
MuleShoe Engineering
"Belief" is the acceptance of an hypotheses in the absence of data.
"Prejudice" is having an opinion not supported by the preponderance of the data.
"Knowledge" is only found through the accumulation and analysis of data.