Would have to be approved by local AHJ and not really designed for an area with a finished ceiling. Interesting product but stills has limited listing.
Craig L. Prahl, CET Fire Protection CH2MHILL Lockwood Greene 1500 International Drive Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 CH2MHILL Extension 74102 [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Matt Grise Sent: Monday, April 04, 2011 2:08 PM To: '[email protected]' Subject: RE: Design solution needed As long as they are not too worried about cost you could try a vortex system from Victaulic. They don't need much water, electricity, or space. They are expensive though! I am also not sure what the lead time is on one. On the plus side: they are very cool. Matt Grisé PE*, LEED AP Sales Engineer Alliance Fire Protection 130 w 9th Ave. North Kansas City, MO 64116 *Licensed in KS & MO 913.888.0647 ph 913.888.0618 f 913.927.0222 cell www. AFPsprink.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ron Greenman Sent: Monday, April 04, 2011 1:02 PM To: [email protected] Subject: Re: Design solution needed Craig, It's not. I just confused myself. I was trying to do something that works really well in a different situation. I was just going down the bigger pipe size in the system line when the whole problem is the restricted pipe at the beginning. Have you figured the loss at a very short run (since we have no idea about 10, 50, or 1000 feet)? I'm having a bad math day. On Mon, Apr 4, 2011 at 10:49 AM, <[email protected]> wrote: > How is making bigger holes on the discharge end going to change the velocity > in the 1.25" service pipe if the flow is a constant? > > Craig L. Prahl, CET > Fire Protection > CH2MHILL > Lockwood Greene > 1500 International Drive > Spartanburg, SC 29304-0491 > Direct - 864.599.4102 > Fax - 864.599.8439 > CH2MHILL Extension 74102 > [email protected] > > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Ron Greenman > Sent: Monday, April 04, 2011 1:38 PM > To: [email protected] > Subject: Re: Design solution needed > > With this little pipe velocity is the problem. I'm using the bigger > holes to require less pressure at the end head and so slow the water > down that's passing through the narrow pipe. Given the restriction of > the pipe and the constant calculated demand of 0.15/X (900 or 1500) > this may do nothing but my in head estimator isn't well calibrated > either. > > On Mon, Apr 4, 2011 at 10:09 AM, Morey, Mike <[email protected]> wrote: >> K8 heads could actually penalize his design in the OH-I area couldn't they? >> 7 psi minimum end head dictates 14ish GPM out of a k5.6, even at 130 sq ft >> going to a K8 head would actually cause him to discharge more GPM than the >> density requires (at least using my not particularly well calibrated >> internal calculator), and GPM as we know is what creates friction loss. In >> the LH area if he spaced the heads out near the limits a K8 will save him >> some pressure, but given his water supply that doesn't look to be his >> biggest concern. The big question is how long the 1 1/4" run is in my mind, >> if it's short enough you can jump up at the connection, if it isn't then you >> don't have a lot of options unless maybe you can squeeze out some area >> reductions (QR/Ceiling height reductions if they haven't been considered) >> with careful code reading and head selection. >> >> Mike Morey, SET >> Sprinkler Designer >> BMW Constructors, Inc. >> O: 317.651.0596 | C: 317.439.2695 >> www.bmwc.com >> <https://owa.bmwc.com/exchweb/bin/redir.asp?URL=http://www.bmwc.com> >> >> >> ________________________________ >> >> From: [email protected] on behalf of Ron Greenman >> Sent: Mon 4/4/2011 12:49 PM >> To: [email protected] >> Subject: Re: Design solution needed >> >> >> >> What K heads are you using. Bigger holes help more than bigger pipes >> in good pressure/bad water situations. If you're using K5.6 see the >> huge gain K8.0 will give you. And your moister recent post asked most >> of the questions I asked just as that left and yours arrived. >> >> >> >> _______________________________________________ >> 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) >> > > > > -- > Ron Greenman > Instructor > Fire Protection Engineering Technology > Bates Technical College > 1101 So. Yakima Ave. > Tacoma, WA 98405 > > [email protected] > > http://www.bates.ctc.edu/fireprotection/ > > 253.680.7346 > 253.576.9700 (cell) > > Member: > ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC > > They are happy men whose natures sort with their vocations. -Francis > Bacon, essayist, philosopher, and statesman (1561-1626) > _______________________________________________ > 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) > _______________________________________________ > 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) > -- Ron Greenman Instructor Fire Protection Engineering Technology Bates Technical College 1101 So. Yakima Ave. Tacoma, WA 98405 [email protected] http://www.bates.ctc.edu/fireprotection/ 253.680.7346 253.576.9700 (cell) Member: ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC They are happy men whose natures sort with their vocations. -Francis Bacon, essayist, philosopher, and statesman (1561-1626) _______________________________________________ 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) _______________________________________________ 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) _______________________________________________ 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)
