Do you also include the friction loss in the hose from the hose valve to the end nozzle? NFPA 14 (07ed) Table A.7.8 states that it takes 123psi @ 250gpm at the valve outlet to account for 150ft of 2 ½” hose. Where does it end? We typically calc 100psi@250 gpm through the valve to the FDC connection and this is fine with our AHJ’s.
*From:* Sprinklerforum [mailto: [email protected]] *On Behalf Of *Mark Phillips *Sent:* Monday, September 12, 2016 2:29 PM *To:* [email protected] *Subject:* RE: Fire Truck Supply @ FDC Also include the friction lose in hose from hydrant to truck / truck to FDC Mark *From:* Sprinklerforum [ mailto:[email protected] <[email protected]>] *On Behalf Of *Matt Grise *Sent:* Monday, September 12, 2016 3:26 PM *To:* [email protected] *Subject:* RE: Fire Truck Supply @ FDC NFPA 14 will dictate your GPM. The hose size and truck performance are all info items to get from the FD. In the past, I have specified that we need 150psi at the FDC inlet – that takes some of the guesswork out if it for us (since they could come with different hose lengths/sizes). I have not met much pushback from FD’s with that approach – but it would not hurt to check before test day. But as previously suggested we use 150@0; 149@ required flow Matt Grisé PE*, LEED AP, NICET II 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 913.526.7443 cell *www. AFPsprink.com* *From:* Sprinklerforum [ mailto:[email protected] <[email protected]>] *On Behalf Of *Brian Harris *Sent:* Monday, September 12, 2016 2:21 PM *To:* [email protected] *Subject:* Fire Truck Supply @ FDC Is there a “standard” GPM @ PSI used for a standpipe calc with regard to what the fire truck will provide? I called the local AHJ and all he would say is they provide 150psi, didn’t know the gpm or even the hose size for that matter. Any help would be greatly appreciated. *Brian Harris, CET* BVS Systems Inc. Design Manager bvssystemsinc.com Phone: 704.896.9989 Fax: 704.896.1935
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