Fire (booster) pump for standpipe
Fire (booster) pump for standpipe
(OP)
Hi Everybody,
I am in New York, and the code requires for standpipes to provide 70 psi at the most remote connection. The pressure at street level is 55 psi. I did hydraulic calculation and it is adequate for sprinkler demand, it is going to be combined system. Does it mean, that in any case when we have standpipe, the fire (booster) pump required, or that pressure requirement implies the usage of fire pumper?
Thank you
I am in New York, and the code requires for standpipes to provide 70 psi at the most remote connection. The pressure at street level is 55 psi. I did hydraulic calculation and it is adequate for sprinkler demand, it is going to be combined system. Does it mean, that in any case when we have standpipe, the fire (booster) pump required, or that pressure requirement implies the usage of fire pumper?
Thank you





RE: Fire (booster) pump for standpipe
Travis Mack
MFP Design, LLC
www.mfpdesign.com
RE: Fire (booster) pump for standpipe
RE: Fire (booster) pump for standpipe
There are manual wet and manual dry standpipes. Manual dry are only allowed in areas subject to freezing and with approval of the AHJ. At least, that is what I recall without looking it up right now.
Travis Mack
MFP Design, LLC
www.mfpdesign.com
RE: Fire (booster) pump for standpipe
RE: Fire (booster) pump for standpipe
This may not be your answer but it could lead you to it. In a similar situation here on a building I had to do the calcs with the water source being the local Fire Depts pumper truck, to prove that when they brought the truck up to the building and connected that the standpipe would indeed provide the required flow at the top with this truck connect. Then the AHJ required us to put a placard above the FDC stating "Manual Wet Standpipe" to make sure the crew understood to connect the pumper truck. (No offense to our men in black and yellow but a AHJ I spoke with stated they hook up the hoses to the FDC only about 10% of the time.)
Correct me if I'm totally off base Travis but just what happened here.
Thanks,
Jon
RE: Fire (booster) pump for standpipe
Travis Mack
MFP Design, LLC
www.mfpdesign.com
RE: Fire (booster) pump for standpipe
RE: Fire (booster) pump for standpipe
Travis Mack
MFP Design, LLC
www.mfpdesign.com
RE: Fire (booster) pump for standpipe
I've attached a shot of the building we had this situation on just for reference.
Thanks,
Jon
RE: Fire (booster) pump for standpipe
that building did not require a fire pump at all?????
RE: Fire (booster) pump for standpipe
You are correct, normally such a building (residential 6 stories) does not require standpipe, but mine is special case, because of location (narrow street) New York City BSA mandated to install the standpipe.
RE: Fire (booster) pump for standpipe
There are two buildings in the shot, the nearly complete building to the left of the shot had a 1500 GPM, 120 PSI Variable Frequency Drive pump we installed. The building to the right they chose not to connect to the fire-pump and it was a semi-heated parking garage 11 stories high. This was the building we had to provide the calcs for the pumper truck as the water supply. The city supply was not enough to provide 100 gpm at the most remote valve.
Thanks,
Jon
RE: Fire (booster) pump for standpipe
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