Without a doubt it will increase the total amount of water discharged at available pressure but that is not a bad thing. The larger pipe will not only reduce the required pressure, it will also lower the required Q by reducing excess discharge / overage. If the system demand is less then the surplus pressure is greater and once that is shown to the AHJ, every one should be a happy camper.
Roland On May 12, 2010, at 7:45 AM, Russell wrote: > Increasing the pipe sizes upstream of the remote sprinkler can cause a > situation called "over spray" or "excess discharge". This increased > discharge increases the total water demand on the supply which in turn > lowers the available pressure which will decrease the safety margin. > Just > from my experiences. > > Russell Rewis > Brown Automatic Sprinklers, Inc. > 107C Hemlock Street > Valdosta, Georgia 31601 > 229-244-8130 _______________________________________________ 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)
