Maybe you could convert the air release discharge to the K factor of a head (or several heads) and set it up as an FDT calc.
Even if it's not as accurate as it could be, it'll be a computer printout for submittal, if that's your goal, and everyone knows if a computer spit it out, it must be right :) Probably the BEST way, and if it is "mission critical" and the mission is important enough to have the FD come out and do a dry run, is to have 'em come out and fill it, and use a stopwatch (or calendar). glc -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tom Duross Sent: Tuesday, March 20, 2007 3:40 PM To: [email protected] Subject: RE: Fill times What about air? It's going to get compressed and have to vent out the air releases. Some are about 3000' to the farthest riser and then up 60'. 6" to 4" to a vented yard wye. Friction, gravity, expansion... It can't be that easy. Really? TD (Volume of the pipe) / (pumper truck pump rate in GPM) = time in minutes. Does anyone know where I can find information on how to calculate fill times on an exterior dry manual standpipe? It's installed along elevated roadways and bridges and will be filled by a pumper truck. Thanks, Tom Duross FGOL _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum
