NFPA 20 2010 4.7.1 and A.4.7.1 prohibit the use of a fire pump for non-fire use, and suggest that it is acceptable to use pressure pumps where they are designed to a standard of reliability similar to that of a public water purveyor. If it were my project I'd want to stay out of the water supply part of it other than the lead ins to the building, or get them to seperate the systems. Mike Morey, SET, CFPS Sprinkler Designer BMW Constructors, Inc. O: 317.651.0596 | C: 317.586.8111 www.bmwc.com
________________________________ From: [email protected] on behalf of Ted Hall Sent: Fri 11/18/2011 11:35 AM To: [email protected] Subject: Fire Pump to multi suppy We are bidding a project where we have been given the design view from 10,000 feet. But the contractor who is awarded the project is to complete the design. The project will have a million gallon storage tank to supply both fire sprinklers an facility water. There is to be one pump house which we would not be involved with that will house a 2500GPM pump at 145psi and another 500GPM pump at about the same PSI. The Fire Pump House will have one electric fire pump at 125 psi and one diesel fire pump same rating and one conversion// spare fire pump at the same rating. All pumps will feed from the storage tank and into a 12" underground loop. The schematic shows a demand of plant water which could be as much as 2500GPM and the fire sprinklers (ESFR system) coming off the same underground loop. The owner has gotten the SFMO's blessing on this arrangement but I am thinking I am going to be replacing fire pumps due them starting and not shutting off. No way a jockey pump can keep up with the demand of the plant water. Has anyone ever been involved with this configuration before. I am thinking it isn't even code. Ted Hall, CET NICET 119535 Water Based {Formerly AutomaticSprinkler} Systems Layout Level III Sentinel Fire Protection 2040 Westland Dr. S.W. Cleveland, Tn. 37311 Office 423 476-7570 Fax 423 476-9014 [email protected] -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20111118/a138b5b6/attachment.html> _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum -------------- next part -------------- A non-text attachment was scrubbed... Name: winmail.dat Type: application/ms-tnef Size: 5109 bytes Desc: not available URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20111118/23064ae0/attachment.bin> _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
