Negative for pipes

[afa13]

Does anyone know what does the term "negative for pipes" mean? once i read that a 2.5 inches negative is needed for the pipe....it has nothing to do with pressure....could it be an insulating layer? can someone give more explanation about this topic?

 

[zdas04]

Only thing that makes sense to me would be buoyancy, but that is a really small number.

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.
The plural of anecdote is not "data"

 

[rconner]

clearance? (actually, might need to ask who wrote to know for sure!)?

 

[PEDARRIN2]

http://www.tropentag.de/2007/abstracts/posters/17.pdf

This indicates it is elevation difference.

 

[TenPenny]

Slope (ie, over some distance)? Clearance? For every pipe you install, you have to remove 2.5 pipes?

 

[pennpiper]

afa13
So far the comments are all over the map and do not answer the question.
"negative for pipes"

afa13 why don't you provide us with the complete wording (the whole paragraph) of where this was used and tell us what kind of document (Code, Standard, Procedure, Work Instruction, etc) it was used in.

prognosis: Lead or Lag

 

[rconner]

undercut, for bedding? (but kind of odd number!)

 

[afa13]

it was on the e-how site ... i cant find it anymore... it isnt in any standard... this is why i got so frustrated! i thought it was some sort of onsite "slang" for technical terms! still i can't figure it out!

 

[chicopee]

A negative value for entropy?

 

[TenPenny]

I think the big thing is that, without the context and the sentence that the phrase appeared in, it could mean just about anything.

 

[Latexman]

"The blind leading the blind" comes to mind.

Good luck,
Latexman

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[afa13]

after careful examination of the term...i think that a sleeve is the closest and most appropriate answer for the term

 

[Artisi]

well that sounds as good as any other explanation, about as useful as tits on a bull.

It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)