The wording in the newer editions of NFPA can be interpreted that each
floor is required to have calculations. I have not had anyone enforce it
yet, but am just waiting for it to happen. I typically do as you do.
I use my BOR demand at the gauge on the floor control valve. So, for a
demand calc, your pressures / flows are not going to change if that is
the point you use as your BOR for your calc tags. As long as all pipe
sizes are the same, pipe routing, etc.. Then the demand is the same at
the floor gauge. Now, if you were doing a supply calc, then you would
have different numbers.
Travis Mack, SET
MFP Design, LLC
2508 E Lodgepole Drive
Gilbert, AZ 85298
480-505-9271
fax: 866-430-6107
email:[email protected]
http://www.mfpdesign.com
https://www.facebook.com/pages/MFP-Design-LLC/92218417692
Send large files to us via: https://www.hightail.com/u/MFPDesign
LinkedIn: https://www.linkedin.com/in/travismack
On 4/12/2017 10:04 AM, Jerry Van Kolken wrote:
Often I do a multi-story building with typical floors. So I only
provide a calculation on the top floor and first floor due to a higher
hazard area. At the end of the job we are asked to provide calc.
plates for every floor. I will just copy the typical floor information
down, but I know the pressures will be incorrect as I move down the
building.
Is there a requirement for this?
Jerry Van Kolken
/_Millennium Fire Protection Corp._/
2950 San Luis Rey Rd.
Oceanside, CA 92058
(760) 722-2722 FX 722-2730
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