To all design the sprinkler system with 250 psi rated sprinkler heads and 300 psi pipe and fittings.
When working with high rise buildings you need to look at the water supply and pump at the beginning of the job and design with high pressure in mind. Regards Jim Sent from my Galaxy S®III -------- Original message -------- From: Roland Huggins <[email protected]> Date:2014/02/18 16:31 (GMT-05:00) To: [email protected] Subject: Re: Static Pressure/Working Pressure IT is referring to the surge pressures running through the distribution system. The non flowing churn pressure fits right in the definition. The problem is not one of potential rupture etc but of liability of knowingly exceeding the preassigned line in the sand. What’s the occupancy classification for the lower areas where you are at 178 psi? Roland Roland Huggins, PE - VP Engineering American Fire Sprinkler Assn. --- Fire Sprinklers Saves Lives Dallas, TX http://www.firesprinkler.org On Feb 18, 2014, at 1:10 PM, [email protected] wrote: > 3.3.23 ('13) System working pressure. The maximum anticipated static > (nonnflowing) or flowing pressure applied to the sprinkler system components > exclusive of surge pressures and exclusive of pressure from the fire > department connection. Isn't the occasional test run of an electric pump a > "surge pressure"? > Ron F _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
