Re: [PipingDesign] Design velocity.

From: <Jacques>
Date: Fri Sep 30 2005 - 11:33:00 EDT

Hello everyone, as stated by Randy and George, the proper pipe size selection can be as simple or as complicated as you want to make it.

However, one aspect is frequently neglected. Systems that have a low friction head as compared to the static head will not be as adversely affected from a power cost point of view if you decide to minimize you pipe costs by selecting a pipe one diameter down from your normal selection based on a set velocity.


   I think a whole lot can go in to the subjects of "sizing" and "design velocity" of piping. As a start and for the specific applications you note, you may wish to obtain some basic references (e.g. see the couple, specific references noted in the thread at ), basic standards (e.g. ANSI/AWWA) and manufacturer's manuals, as well as search the archives of this and other forums as you wish. With all the choices of materials, dimensions, properties, and also in some cases conflicting information out there today with regard to same, to do this right for the ultimate long-term benefit for an Owner, taxpayers, and the environment probably requires all this, as well as perhaps a good bit of experience and perhaps integrity as well. I think reputable "civil", other engineers, and others working for consultants and utilities make a living out of doing this and other engineering work.

   Randy Conner
   Research Department - Technical Division    American Cast Iron Pipe Company
   1501 31st Avenue North, Birmingham, AL 35207    P. O. Box 2727, Birmingham, AL 35202
   ph 205-325-7946
   fax 205-325-8095

   -----Original Message-----
   []On Behalf Of n2701h    Sent: Friday, September 30, 2005 8:11 AM    To:
   Subject: [PipingDesign] Design velocity.

   What is the design velocity for the sizing of a potable water/raw water    piping? or which book i can refer.

   With Thanks.

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[Non-text portions of this message have been removed] Received on Fri Sep 30 11:33:00 2005

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