Isn't C for new steel 150. We use 120 to "semi"-account for degradation. If the pipe is flushed IAW 25, and all the stuff done that is SUPPOSED to be done, then you should have a good idea on internal condition. As Scot said, the end resulting flow is the final indication of pipe condition.
R// Matt Matthew J. Willis Living Water Fire Protection, LLC. 1160 McKenzie Rd. PO Box 877 Cantonment, FL. 32533 850-937-1850 Voice 850-937-1852 Facsimile [EMAIL PROTECTED] ----- >-----Original Message----- ----- >From: [EMAIL PROTECTED] ----- >[mailto:[EMAIL PROTECTED] On ----- >Behalf Of å... .... ----- >Sent: Wednesday, February 13, 2008 8:34 AM ----- >To: [email protected] ----- >Subject: C-Factor for old piping ----- > ----- >i may not be following your point, ----- >but if you are concerned that the actual C-factor of old ----- >UG pipe is less than the idealized C-factor ----- > ----- >what does it matter ----- >as long as you take your source where ever your gauge hydrant is? ----- > ----- >the waterflow test will account for any aging in the ----- >pipes, automatically. ----- > ----- >it is another thing, ----- >to extend this thinking, ----- >downstream of the ----- >guage hydrant though. ----- >There you will need ----- >professional judgement ----- >to bring ----- >value engineering. ----- > ----- >scot deal ----- >excelsior fire ----- > ----- > ----- > ----- >On Feb 13, 2008 1:19 PM, danarbel <[EMAIL PROTECTED]> wrote: ----- > ----- >> ----- >> ----- >> According to 22.4.4.7 Friction Loss, The C-Factor used ----- >for black steel ----- >> pipe is 120. ----- >> ----- >> My question is: ----- >> ----- >> In case of using old pipe system Mains for water ----- >supply of sprinkler ----- >> system, ----- >> ----- >> ----- >> Is there in the code any requirement to find out by ----- >actual testing ----- >> that the piping determined as adequate by the ----- >hydraulic calc procedure ----- >> is indeed adequate? ----- >> ----- >> Thanks ----- >> ----- >> ----- >> Dan Arbel ----- >> Tel: 972-4-8243337 ----- >> Fax: 972-4-8243278 ----- >> M: 972-52-2810593 ----- >> ----- >> No virus found in this outgoing message. ----- >> Checked by AVG Free Edition. ----- >> Version: 7.5.516 / Virus Database: 269.20.4/1275 - ----- >Release Date: ----- >> 12/02/2008 ----- >> 15:20 ----- >> ----- >> ----- >> _______________________________________________ ----- >> Sprinklerforum mailing list ----- >> [email protected] ----- >> http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum ----- >> ----- >> To Unsubscribe, send an email ----- >> to:[EMAIL PROTECTED] ----- >> (Put the word unsubscribe in the subject field) ----- >> ----- >_______________________________________________ ----- >Sprinklerforum mailing list ----- >[email protected] ----- >http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum ----- > ----- >To Unsubscribe, send an email ----- >to:[EMAIL PROTECTED] ----- >(Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
