Since the wording is in thee about roof manifolds, yard hyrants, etc., I've always been under the impression that so long as your arrangement works- it works. There's no criteria added for the hydrant or roof manifold arrangements, and it is for ITM that we have the header, not suppression or control.
Therefore, if the arrangement is workable, then it should be accepted. It's convenient to not hammer the UG when doing a flow flow pump test, so we put the header ahead of the pump discharge control valve- you can shut the discharge valve, and isolate the pump from the UG - or a bank of risers. Heck, you might want to play with or defeat PLD settings or something, without exposing other systems to the higher pressure. If there are yard hydrants, you could omit the header- offer that as an option to the engineer? Then it won't be connected to anything. While I smiled at the "where'd he go to school" logic, it might be better to ask him why he doesn't like your arrangement, and cite specific code sections supporting what he would prefer. Ron, did it get below 92*F at night yet? glc -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Fletcher, Ron Sent: Wednesday, September 19, 2007 1:06 PM To: [email protected] Subject: RE: pump test header location It's more common to take the test header off the end of bulk main or combine it with the FDC line if the header is remote from the pump room. Ron Fletcher Aero Automatic Phoenix, AZ -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of FPDC Sent: Wednesday, September 19, 2007 7:06 AM To: [email protected] Subject: pump test header location The diagrams in NFPA 20 show the connection for the test header prior to the valve on the discharge side of the pump. However, the diagrams are located in the appendix and I can't seem to find any text reference to it within the standard. Coul; someone enlighten me if the is any and if so, where? I've called for this and am being challenged by an engineer. Thanks Todd G. Williams, PE Fire Protection Design/Consulting Stonington, Connecticut www.fpdc.com 860.535.2080 _______________________________________________ _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
