Also if you look at - 4.15.6.3.3 Elbows and tees with a centerline plane
perpendicular to the horizontal split-case pump shaft shall be permitted at
any location in the pump suction intake - This says to me that the suction
piping could be going up or down and your current configuration sounds like
ng to automatic fire sprinklers
Subject: [Sprinklerforum] Re: Elbows in pump suction
Your fire pump testing is allowed to be done at actual system demand if the
water supply is not capable of providing water for full flow of the fire pump
14.2.6.2.4 Where the maximum flow available from the water su
Your fire pump testing is allowed to be done at actual system demand if the
water supply is not capable of providing water for full flow of the fire
pump
14.2.6.2.4 Where the maximum flow available from the water supply cannot
provide a flow
of 150 percent of the rated flow of the pump, the fire p
: Fpdcdesign
Sent: Friday, July 14, 2023 2:07 PM
To: Discussion list on issues relating to automatic fire sprinklers
Subject: [Sprinklerforum] Re: Elbows in pump suction
Eric, My main question is if the 10 diameter requirement can be split into 2
section or does it have to be one continuous length
2:07 PM
To: Discussion list on issues relating to automatic fire sprinklers
Subject: [Sprinklerforum] Re: Elbows in pump suction
Eric, My main question is if the 10 diameter requirement can be split into 2
section or does it have to be one continuous length?
The problem is that the suction press
Eric, My main question is if the 10 diameter requirement can be split into 2
section or does it have to be one continuous length?
The problem is that the suction pressure on the pump test goes to 0 psi at 1500
gpm. Based on my calculations, it should be around 17 psi. I kno
Todd,
Like Brett mentioned, going vertical to eat up pipe length is shown in the
annex of NFPA 20, and I’ve seen/used that approach before. When you say there
is a problem with the test, is this for a new fire pump installation? Are you
not meeting your curve, and if so, are you off by a substa
If you look at FIGURE A.4.15.6 Right and Wrong Pump Suctions, one of the
diagrams does show something similar to what you are proposing.
I will be on Holidays from August 12th to 21st, returning to work on
Tuesday August 22nd
Thanks
Brett Peters
General Manager Installation & Design
Proudline Fi
