What are they supposed to be set for? Would seem to me that you would flow test them and verify that the residual at the required flow rate is in accordance with the approved design.
The way we test/set these things around here is with a jig that has a 2.5" piece of rubber hose with an in-line flow meter and pressure gauge. If the standpipe is fitted with pressure gauges on the supply side of the reducing valves (as it's supposed to be, you can compare the supply and discharge pressures to be sure the valve is still performing to its setting or restrictor. There is SUPPOSED to be a large enough drain riser in proximity, with connections on each floor - pipe or hose threaded or grooved per the local AHJ - into which you tie the hose. Open each valve and let 'er rip ... but keep a body downstairs at the pump room with a two way. And call Tom Duross at FGOL Fire Protection Services if he doesn't chime in on his own. Steve Leyton Protection Design & Consulting San Diego, CA -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Craig Small Sent: Wednesday, November 26, 2008 9:25 AM To: [email protected] Subject: RE: How do you test a pressure reducing valve on a standpipe? Forum members, I need some help a salesman sold a job where we have to do the 5 year test of 73 pressure reducing valves installed in a standpipe? How do you test them and what do you test them for? _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [EMAIL PROTECTED] To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) __________ Information from ESET NOD32 Antivirus, version of virus signature database 3643 (20081126) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __________ Information from ESET NOD32 Antivirus, version of virus signature database 3643 (20081126) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [EMAIL PROTECTED] To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
