PE Liner Collapse Pressure
PE Liner Collapse Pressure
(OP)
What should be collapse pressure to be considered for design of HDPE liner pipe used for lining purspose inside CS pipeline or flowline. We believe it should be maximum of 1 bar (atm.p) but some specifications shown collapse pressure shall consider as 3.0 bar while design of liner. Is there any specific reason to consider collapse pressrue more than 1.0 bar? IS there any code which specifies the same???





RE: PE Liner Collapse Pressure
I've also seen one for mount of deformation versus pressure.
Collapse of the liner can occur if there is gas which diffuses through the liner into any space between the liner and the pipe. Unless you can evacuate this or keep it below a low pressure you have the potential for collapse.
Given that the liners are normally quite high SDR, this pressure is quite low
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RE: PE Liner Collapse Pressure
David Simpson, PE
MuleShoe Engineering
In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual. Galileo Galilei, Italian Physicist
RE: PE Liner Collapse Pressure
[img https://books.google.com/books?id=Kee4BwAAQBAJ&...]
RE: PE Liner Collapse Pressure
RE: PE Liner Collapse Pressure
http://web.nacecalgary.ca/pdfs/NorthernPapers/Meth... . I hope this additional information is helpful.
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