No, I have had to put an extra control valve for the standpipe feed at point of connection to the riser manifold in addition to the standpipe isolation valves. The AHJ’s reasoning was that if work was required on the feed pipe it could be isolated and wouldn’t affect the other systems on the manifold.
Thank you, Dewayne Martinez Fire Protection Design Manager *TOTAL* *Mechanical* *Building* *Integrity* W234 N2830 Paul Rd. Pewaukee, WI 53072 [email protected] Ph: 262-522-7110 Cell: 414-406-5208 http://www.total-mechanical.com/ [image: Consecutive Honors 2012-2017] *From:* Sprinklerforum [mailto: [email protected]] *On Behalf Of *Steve Leyton *Sent:* Friday, February 02, 2018 9:39 AM *To:* [email protected] *Subject:* RE: FDC & Pump What valve are you referring to as “standpipe feed” control? Are you talking about the isolation valves required in 6.3.2? If that’s the valve you’re referring to, then no you do not have to pump downstream of that (those) valve(s). The foregoing is my opinion only and is not intended to represent the NFPA 14 Technical Committee, nor serve as an interpretation of the standard. SL *From:* Sprinklerforum [ mailto:[email protected] <[email protected]>] *On Behalf Of *Dewayne Martinez *Sent:* Friday, February 02, 2018 4:29 AM *To:* [email protected] *Subject:* RE: FDC & Pump Tom, Are you saying that if I put a control valve for the standpipe feed at the riser manifold and the FDC is connected to the riser manifold that I must also connect the FDC downstream of the standpipe feed control valve? Is that in 14? I have had a couple of AHJ’s make me put a control valve in over the years and I didn’t know it was wrong. I thought it was just like the individual system control valves on the manifold. Thank you, Dewayne Martinez Fire Protection Design Manager *TOTAL* *Mechanical* *Building* *Integrity* W234 N2830 Paul Rd. Pewaukee, WI 53072 [email protected] Ph: 262-522-7110 Cell: 414-406-5208 http://www.total-mechanical.com/ [image: Consecutive Honors 2012-2017] *From:* Sprinklerforum [mailto: [email protected]] *On Behalf Of *Tom Duross *Sent:* Wednesday, January 31, 2018 4:36 PM *To:* [email protected] *Subject:* RE: FDC & Pump What Larry said.. And there can’t be any valves between the FDC and the FDV’s on the standpipe unless you have more than one standpipe and have isolation valves at the base of each standpipe so you can’t take them off the riser manifold, for example. TD The requirement is from NFPA 13, not from NFPA 20. Here is the text from NFPA 13-2013: 8.17.2.4.8 Fire department connections shall not be connected on the suction side of fire pumps. Larry Keeping I have always installed FDC's on the discharge side of fire pumps. Looking through 2013 NFPA 20, I don't see anything precluding the instillation on the supply side. Is the FDC allowed to be installed on the supply? I have a contractor that has installed the FDC on the supply run-in, instead of stubing up a secondary line from the remote FDC. Thanks, Jamie
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