Dewayne: Why a reducing valve instead of a relief valve? If the excess pressure is at churn only, then a relief valve would be the ticket as it only occurs in a no-flow condition. This would mitigate Pete's concerns about redundancy as prescribed in NFPA 14.
SML -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Martinez, Dewayne Sent: Tuesday, May 20, 2014 5:20 AM To: [email protected] Subject: Pressure reducing valve on fire pump We have a situation where we have a pump that produces more than 175psi at churn. Can we put in a main pressure reducing valve after the pump discharge to bring it all down to 175psi or do we need one for each system? Thanks, Dewayne _______________________________________________ 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
