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Anonymous Poster

NP3

12/16/2009 1:17 AM

what does NP mean in NP 2 ,3 in hume pipes for road crossings??
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dcongvt
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Join Date: Feb 2008
Posts: 47
Good Answers: 1
#1

Re: NP3

12/16/2009 3:27 AM

Nominal pipe size ( NP, ND)

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 cvt_82
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Anonymous Poster
#2

Re: NP3

12/22/2009 11:00 PM

Hello,

Refer IS:458, Clause 4.1

Ragards,

Hiren Raval

09909908607
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manis2k3_knit
Associate

Join Date: Jan 2010
Posts: 28
#3

Re: NP3

01/12/2010 7:22 AM

it is the non pressure pipe . and np1, np2 & np3 means strength of pipe. for road crossing go for np3. these pipe are used for generally of fire line,Electrical cable when they are under road cross.
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jai.vignesh
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Join Date: Feb 2011
Location: INDIA
Posts: 44
#4

Re: NP3

01/17/2012 9:09 AM

The non pressure pipes (hume pipe) also used for irrigation and storm water usage.

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 N.Vigneshkumar
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