Never really noticed that before, on a calc I just looked at, a demand calc, the continuation pressure is the same as pump outlet and system pressure, probably churn plus city. It may reflect the max available? Ask Hydracalc or check the documentation. Bill Minkel, Designer Western States Fire Protection, Dallas NFPA Member #2578666
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of IPA Sent: Thursday, March 13, 2008 3:00 PM To: sprinklerforum Subject: Pump "Continuation Pressure" in HydraCalc Can anyone explain the concept of "contination pressure" to me regarding fire pumps. The first time I've seen this term is in Hydracalc and I really don't grasp it. Let' say I have a pump rated 125 psi @ 1000 gpm. (churn is at 147 psi) my system demand is 98 psi @ 481 gpm at the pump discharge. The report spits out the proper system demand pressure followed by: "Continuation Pressure: 186.7, Pressure @ pump outlet 186.7 Pressure from pump curve: 146.0" etc... Any hydracalcers care to take a stab at this? Am I missing something, doing something wrong, or is it too close to friday? I always thought max pressure would be the pumps churn - not a continuation of pressure off the curve somewhere in space? Thanks in advance, _______________________________________________ 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) _______________________________________________ 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)
