I have a pump room where an esteemed colleague suggested I locate the fire pump test header control valve near the test header on the vertical pipe to limit the amount of “dry” pipe. Since the valve would be located near the top of vertical pipe the dry portion of the pipe would drain well and wouldn’t have corrosion issues. However, NFPA 20 says that the valve “shall be at a point in the line close to the pump.” (NFPA 20, 2013 ed. 4.20.3.3.3). I know the valve needs to be at least 4’ from the exterior wall along the pipe for freeze issues, but does anyone know the reason 20 requires that valve be close to the pump?
Thanks. Reed Roisum Reed A. Roisum, SET | Karges-Faulconbridge, Inc. | Senior Fire Protection Designer | Fargo, ND | direct: 701.552.9903 | mobile: 701.388.1352 | KFIengineers.com<http://www.kfiengineers.com> ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please visit http://www.symanteccloud.com ______________________________________________________________________
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