Anyone ever see something like this before? A single 10 run-in rises up and with a "Y" connection serves (2) 6" Preaction valves, above the (2) P.A. valves the 6" lines come back together to a single 10" line out to some sort of preaction system somewhere. This was the engineer's design, done in 1977.
Design criteria is this: "Hazard area: 0.30 gpm/sq. ft, max. head spacing of 90 sq. ft. 17/32" orifice heads." That's all there is. Any insight or just plain insanity? Was there any restriction on size of P.A. systems in '77? This one ought to be fun. Craig L. Prahl, CET Fire Protection Specialist Mechanical Department CH2MHILL Lockwood Greene 1500 International Drive PO Box 491, Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 [email protected] http://www.ch2m.com _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
