In situations where availability was a problem we've used the Potter PCVS with their PBK bracket mounted at 90 degrees. You have to have blessing to do it as it's not a listed assembly in that instance, but using listed parts together most AHJs are fine with it.
Mike Morey CFPS 3229 • NICET S.E.T. 123677 Project Manager • Fire Protection Group Shambaugh & Son, LP an EMCOR Company 7614 Opportunity Drive • Fort Wayne, IN • 46825 direct 260.487.7824 / cell 260.417.0625 / fax 260.487.7991 email [email protected] From: John Denhardt <[email protected]> To: "[email protected]" <[email protected]> Date: 06/22/2017 02:53 PM Subject: Re: Fire pump flow meter butterfly valves Sent by: "Sprinklerforum" <[email protected]> Victaulic style 707C or the NIBCO equivalent must be used. I do not believe any other manufacturers make a Listed normally closed monitored butterfly valve. This is a NFPA 20 requirement. John John August Denhardt, P.E. Strickland Fire Protection On Jun 22, 2017, at 2:34 PM, Steve Leyton <[email protected]> wrote: Are you asking about valves that are described in a tech data sheet as a “normally closed butterfly valve”? Like in Nibco’s catalogue, you have to order the N suffix or something like that? Assuming yes, all that means is that it’s a regular, everyday fire protection butterfly valve but the tamper switch kit is factory-wired for NC service. So if your question is about the tamper switch, yes you want normally closed ones for a flow meter/test bypass. I think. SL From: Sprinklerforum [ mailto:[email protected]] On Behalf Of Mark Phillips Sent: Thursday, June 22, 2017 11:16 AM To: '[email protected]' Subject: Fire pump flow meter butterfly valves I keep going back and forth on the answer so I am asking for help Does the flowmeter bypass butterfly valves have to be normally closed monitored valves? Or can they be just be monitored butterfly valves. Thanks in advance Mark _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.firesprinkler.org_listinfo.cgi_sprinklerforum-2Dfiresprinkler.org&d=DwICAg&c=GKdB6-XpYq_0W-WluyVHtw&r=z4t2hrRBa-JsS06T4X_uuYOSJoclVWgSRO8Nq6TDdsg&m=B_Z_t7nRaI2u5z2daFABhZGVBfY7Tv3Tyg_pmU946U4&s=UFxy1F-Wmxp8JcPorfQXN82RhALVGDFXU5khOYvCr6U&e= This message is for the named person's use only. It may contain confidential, proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you receive this message in error, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient.
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