Flow test
Flow test
(OP)
If we already performed the pump acceptance test and it was aproved, do we HAVE to make the flow test with the wtaer lines acording to NFPA?
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RE: Flow test
If anything the flow test of the city water main should have been conducted long before the pump was purchased.
RE: Flow test
RE: Flow test
RE: Flow test
Not sure why they are saying you do not need that. Not near 14 today.
Is there an ahj involved that also has to approve the entire system?
RE: Flow test
RE: Flow test
Your question is not clear to me so I'm offering a generic answer to a generic question.
RE: Flow test
-Standards edition is 2013
-AHJ in this case as a supervisor it´s me
Thank you
RE: Flow test
I have had to do this once; not a big deal just make sure the roof can handle the run off.
This all said the reading from the top of the standpipe, where the gauge actually is, is incorrect in my opinion because the standard calls for 65 or 100 psi at the outlet which would be downstream the 2 1/2" angle hose valve. Been a while but I figured it up once and seems to me we needed an extra 15 psi at the gauge to have what was needed at the "outlet".
RE: Flow test
RE: Flow test
RE: Flow test
RE: Flow test
RE: Flow test
Seems to want you to flow water
11.5 Flow Tests.
11.5.1* The standpipe system shall be tested to verify system demand.
11.5.1.1 This test shall be conducted by flowing water simultaneously from the outlet(s) indicated in the approved hydraulic calculations of each standpipe as required by Sections 7.8 and 7.10.
The 2016 gives the AHJ the option:::
11.5 Flow Tests.
11.5.1* The standpipe system shall be tested to verify system demand.
11.5.1.1 The test required by 11.5.1 shall be permitted to be waived where acceptable to the AHJ.
11.5.1.2 This test shall be conducted by flowing water simultaneously from the outlet(s) indicated in the approved hydraulic calculations of each standpipe as required by Sections 7.8 and 7.10.
As far as seeing if the hose reaches, should have been checked on the plans, and only questioned if the building layout or hose location has changed from the plans.
RE: Flow test
RE: Flow test
It's all up to the AHJ and that said there was only once time in my life I had to flow water from the top outlet but it's in there; if it is asked for then it is done.
NFPA #14 has to be watched closely in travels from state to state because if any standard gets tinked with it seems to be this one.
Georgia for example.
With the exception of open parking garages we don't have manual standpipes. Every standpipe must meet the 100 psi at the top unless the local AHJ will accept 65 psi.
But there is a way out that is very close to a manual standpipe and that is if the building is not a high rise the 100 psi (or 65 psi) requirement is waived if ALL standpipe piping is a minimum of 8" diameter. All pipe means all from the tap in the street up to the top outlet; all of it must be 8" diameter. At this point if all you have is 18 psi residual flowing 100 gpm (I actually have one of these) you're good to go in Georgia. Looks silly in a four story Holiday Inn but such is the way around here but we do save on the fire pump.
RE: Flow test
RE: Flow test
NFPA 13,,,14,,, 20,,, ?
So to me you have to meet all three to say the systems meet those standards.
And under the 2013 seems like flow test of the standpipes is required.
RE: Flow test
11.5 Flow Tests.
11.5.1* The standpipe system shall be tested to verify system demand.
There is not an exception for fully sprinklered buildings.
Then NFPA 25 is even more black and white for this process at 5 year intervals.
6.3.1.1* A flow test shall be conducted every 5 years on all Class I and Class III standpipe
systems to verify that the required flow and pressure are available at the hydraulically most
remote hose valve outlet(s) while flowing the standpipe system demand
Travis Mack
MFP Design, LLC
www.mfpdesign.com
"Follow" us at https://www.facebook.com/pages/MFP-Design-LLC/9221...
RE: Flow test