I assumed the 1/2” relief by NFPA 13 is too small to reduce the excess pressure from a pump.
Roland Huggins, PE - VP Engineering American Fire Sprinkler Assn. --- Fire Sprinklers Saves Lives Dallas, TX http://www.firesprinkler.org On May 20, 2014, at 2:04 PM, [email protected] wrote: > What it the relief valve is required by NFPA #13, 7.1.2.1? The relief valve > doesn't know if the excess pressure was created by thermal expansion or a > pump churn during peak city static pressure but it will return the system > pressure to less than 175. > Ron F _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
