Yes, your calculation program should take into account both pressure lost and pressure gained due to elevation change. Lets say your calculated area in the building was level with the POC, then the pressure loss and gain due to elevation would be a wash.
Owen Evans >>> "Bob Knight" <[EMAIL PROTECTED]> 09/08/07 9:51 PM >>> I have a situation where there is approximately a 35’ drop in elevation in the UG piping from the point-of-connection to the building. This is a situation that usually seems to occur in reverse. If it were an increase in elevation I would account for the elevation pressure loss in my calculations, but since this is a drop in elevation do I take that into account with my calculations as well? This would give me an additional 15 or so psi at the base of riser. To me this seems wrong, but is it? Do I add this to my static and residual pressure? Or, is this just added to the residual? Or, do I do nothing at all? Bewildered in Idaho, Bob Knight, CET (208) 495-2057 [EMAIL PROTECTED] www.firebyknight.com No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.485 / Virus Database: 269.13.7/992 - Release Date: 9/6/2007 8:36 AM _______________________________________________ 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)
