It seems we are doing the fire flow calculations for more and more projects. In the not so distant past it was enough to furnish a flow test and graph it out to 20 psi to show the available exceeded the minimum required fire flow, but no more. AHJ's are requiring hydraulic calc's of the private fire lines so now we lowly sprinkler contractors are having to space hydrants and size loops. I had always thought that it was the work of the civil engineer but it's amazing how few civil engineers are set up to do the hydraulic calc's.
Ron Fletcher Aero Automatic Phoenix, AZ -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Drucker Sent: Thursday, July 24, 2008 2:55 PM To: [email protected] Subject: RE: Fire Flow Calculation Likewise when licensed fire protection contractors get caught attesting that the vane type flow switch operates properly yet no ITC exists. Lots of red faces this morning, but not to worry the fire alarm contractor says he tests em all with a screwdriver. JD -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of George Church Sent: Thursday, July 24, 2008 1:55 PM To: [email protected] Subject: RE: Fire Flow Calculation Never ceases to amaze me what "they" think WE should be expert at, yet we have township inspectors looking over our work who don't know what a flow switch is. glc -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Fletcher, Ron Sent: Thursday, July 24, 2008 1:37 PM To: [email protected] Subject: RE: Fire Flow Calculation I think I have tried the ISO method before and unless I did something wrong (easily) the fire flows I ended up with for large buildings were greater than those in Appendix B. At the very least I will need a lot more information on the existing building before proposing something other than 6000 gpm to the AHJ. Thanks to everyone for your input. Ron Fletcher Aero Automatic Phoenix, AZ _______________________________________________ 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)
