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  • Submitted: Nov 17 2011 09:00 AM
  • Last Updated: Dec 11 2013 12:13 AM
  • File Size: 2.73MB
  • Views: 38988
  • Downloads: 6,676

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  • 17 Nov 2011 Download Equivalent Length Calculations for Pipes and Valves

Download Equivalent Length Calculations for Pipes and Valves 1.1

* * * * - 8 Votes
equivalent length pipe valves calculator


What's New in Version 1.1 (See full changelog)

  • Increased accuracy for formulas for calculating resistance coefficients for concentric reducers and expanders. Method reference is:
  • Pipe Flow - A Practical & Comprehensive Guide by Donald C. Rennels and Hobart M. Hudson.

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Oct 01 2012 04:00 AM
Senthil Kumar_209077
Nov 16 2013 08:52 AM

good great!!!!!!


Ajay S. Satpute
Dec 12 2013 01:59 AM

Very useful. Thanks.

Thanks Ankur Sir

Thanks Ankur

Hi, in the spreadsheet....the  fitings have flanges????

What is the equivalent length for a flange???

Dear Ankur,


I'm wondering if you would mind sharing the bibliographic information on the paper included in the last worksheet.  I'm interesting in 11.5 "the extended intersection points...appear to be about 20% of the length," resulting in the 1.20L term in the equation for the divergence angle.  I'm likewise interested in the Figure 11.10.


Thanks for sharing this workbook.



Did you see that part in Rennels and Hudson where they say pressure drop in an ANSI reducer can pretty much be ignored because there is no bulk slowdown?  Do you agree with that?




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