I am not ungrateful. yes, I missed that one, Steve. Dooooooo.... Thank you all for edumacating me.
----- Here is another, related question to separate sensing lines and fire pump controllers with PRedVs. A design team chose to move the design ahead with multiple large-flow PRedV stations. Per comment from Tom Duross offered New Year's Day 2009, (paraphrased) "...one solution to oscillations in pressure between JP controllers and PRedVs-downstream-of-FP is to locate the JP discharge and JP sensing lines downstream of the PRedV." Does it then follow if we have handfuls of large-flow PRedVs that are downstream-of-the-FP, that we will need equally as many JPs to match one-for-one each PRedV, so as to provide for the solution mentioned above on January one, 2009? If not, can someone predict the stability of a system ;-/ with several JPs each discharging upstream of downstream-PRedVs. I am following orders to work with a given design. Scot Deal Excelsior Fire Engineering -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20110923/cd663d60/attachment.html> _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
