13D only requires you add it if you use the simplified calc method in 13D. On Fri, Sep 23, 2011 at 12:06 PM, Trevor Spain <[email protected]>wrote:
> "22.4.4.7 (5) Do not include fitting loss for straight-through flow in a > tee or cross." Seems clear to me. It doesn't say " ... unless manufacturers > data ... ". > > 13D does require inclusion of loss for straight-through flow. That's why > the information is in cpvc and pex data sheets. > > Trevor Spain > Igneus Incorporated > > > > On 9/23/2011 1:55 PM, Steve Leyton wrote: > >> I mean to say that if you peruse the manufacturer's data sheets for >> products like CPVC and PEX they require it in very clear language. I >> believe that the press-type fittings do as well. Not in every case - >> Jamie alluded to the fitting chart in NFPA 13 for example. >> >> >> Steve Leyton >> >> >> >> >> -----Original Message----- >> From: >> sprinklerforum-bounces@**firesprinkler.org<[email protected]> >> [mailto:sprinklerforum-**[email protected]<[email protected]>] >> On Behalf Of Bob >> Sent: Friday, September 23, 2011 11:45 AM >> To: sprinklerforum@firesprinkler.**org <[email protected]> >> Subject: RE: "flow through tee's and Hydraulic calculations" >> >> I either misunderstand what is being said here, or my ignorance is about >> to >> show through, but I have never heard anyone say that "you absolutely >> have to >> include" a flow through tee in calculations regardless of type. 13 >> 22.4.4.7(5) seems clear to me that you don't include this fitting >> regardless >> of schedule. Am I missing something? >> >> Thanks, >> >> Bob Knight, CET III >> 208-318-3057 >> www.firebyknight.com >> >> >> >> -----Original Message----- >> From: >> sprinklerforum-bounces@**firesprinkler.org<[email protected]> >> [mailto:sprinklerforum-**[email protected]<[email protected]>] >> On Behalf Of Steve >> Leyton >> Sent: Friday, September 23, 2011 12:13 PM >> To: sprinklerforum@firesprinkler.**org <[email protected]> >> Subject: RE: "flow through tee's and Hydraulic calculations" >> >> Manufacturer's data sheets give the values and instruct on use - see >> BlazeMaster design guide, for ex. Yes, you absolutely have to include >> ... >> >> >> Steve Leyton >> >> >> >> >> -----Original Message----- >> From: >> sprinklerforum-bounces@**firesprinkler.org<[email protected]> >> [mailto:sprinklerforum-**[email protected]<[email protected]>] >> On Behalf Of Seidl >> Jamie >> D. >> Sent: Friday, September 23, 2011 10:11 AM >> To: sprinklerforum@firesprinkler.**org <[email protected]> >> Subject: "flow through tee's and Hydraulic calcultions" >> >> Hello forumites, I'd like to pole the forum and see what the consensus >> is on >> accounting for flow through tee's or "tee on the run" when calculating a >> system. NFPA states that they do not need to be included when using the >> schedule 40 fitting table. But when using manufactures' >> fitting equivalents, do you include them? >> >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: >> <http://fireball.**firesprinkler.org/mailman/** >> private/sprinklerforum/attach<http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attach> >> ments/20110923/dfa2b426/**attachment.html> >> ______________________________**_________________ >> Sprinklerforum mailing list >> Sprinklerforum@firesprinkler.**org <[email protected]> >> http://fireball.firesprinkler.**org/mailman/listinfo/**sprinklerforum<http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum> >> ______________________________**_________________ >> Sprinklerforum mailing list >> Sprinklerforum@firesprinkler.**org <[email protected]> >> http://fireball.firesprinkler.**org/mailman/listinfo/**sprinklerforum<http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum> >> >> ______________________________**_________________ >> Sprinklerforum mailing list >> Sprinklerforum@firesprinkler.**org <[email protected]> >> http://fireball.firesprinkler.**org/mailman/listinfo/**sprinklerforum<http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum> >> ______________________________**_________________ >> Sprinklerforum mailing list >> Sprinklerforum@firesprinkler.**org <[email protected]> >> http://fireball.firesprinkler.**org/mailman/listinfo/**sprinklerforum<http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum> >> >> >> ______________________________**_________________ > Sprinklerforum mailing list > Sprinklerforum@firesprinkler.**org <[email protected]> > http://fireball.firesprinkler.**org/mailman/listinfo/**sprinklerforum<http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum> > -- 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) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20110923/d568ccc8/attachment.html> _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
