NFPA #20 Figure A-2-14.1.2(b) Flow Meters
NFPA #20 Figure A-2-14.1.2(b) Flow Meters
(OP)
From NFPA #20 A-2-14.1.2
Figure A-2-14.1.2(b) Typical arrangement for measuring fire pump water flow with meter. Discharge from the flowmeter is recirculated to the fire pump suction line.
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The diagram references note #4.
(4) The fire protection system should have outlets available to test the fire pump and suction supply piping. (See A-2-14.3.1.)
There's a world of difference between should and shall so I am not going to do it but I must be dense today because I can't figure what they want.
Figure A-2-14.1.2(b) Typical arrangement for measuring fire pump water flow with meter. Discharge from the flowmeter is recirculated to the fire pump suction line.
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The diagram references note #4.
(4) The fire protection system should have outlets available to test the fire pump and suction supply piping. (See A-2-14.3.1.)
There's a world of difference between should and shall so I am not going to do it but I must be dense today because I can't figure what they want.





RE: NFPA #20 Figure A-2-14.1.2(b) Flow Meters
RE: NFPA #20 Figure A-2-14.1.2(b) Flow Meters
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Fire Sprinklers Save Firefighters' Lives Too!
RE: NFPA #20 Figure A-2-14.1.2(b) Flow Meters
Travis Mack
MFP Design, LLC
RE: NFPA #20 Figure A-2-14.1.2(b) Flow Meters
RE: NFPA #20 Figure A-2-14.1.2(b) Flow Meters
A.5.19.3.1 The hose valves should be attached to a header or manifold and connected by suitable piping to the pump discharge piping. The connection point should be between the discharge check valve and the discharge gate valve. Hose valves should be located to avoid any possible water damage to the pump driver or controller, and they should be outside the pump room or pump house.
If there are other adequate pump testing facilities, the hose valve header can be omitted when its main function is to provide a method of pump and suction supply testing.
Where the hose header also serves as the equivalent of a yard hydrant, this omission should not reduce the number of hose valves to less than two.
RE: NFPA #20 Figure A-2-14.1.2(b) Flow Meters
A.5.19.1.1 The two objectives of running a pump test are to make sure that the pump itself is still functioning properly and to make sure that the water supply can still deliver the correct amount of water to the pump at the correct pressure. Some arrangements of test equipment do not permit the water supply to be tested. Every fire pump installation needs to have at least one arrangement of test equipment where the water supply can be tested. Inspection, testing, and maintenance standards (NFPA 25) require the pump test to be run at least once every three years using a method that tests the water supply's ability to provide water to the pump.
RE: NFPA #20 Figure A-2-14.1.2(b) Flow Meters
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RE: NFPA #20 Figure A-2-14.1.2(b) Flow Meters
remember you are reading from the appendix,
RE: NFPA #20 Figure A-2-14.1.2(b) Flow Meters
Yes, but I would still like to know why Note #4 is there to begin with. As far as testing the suction line you can do that through the hose header.
The true answer is probably lost to antiquity seeing how the figure drawing probably first appeared in the 1914 edtion.
RE: NFPA #20 Figure A-2-14.1.2(b) Flow Meters
and once again it does say "should" like you say it more than likely has been there for a number of years.
it is in 1999 nfpa 20
it does refer you to:
A.5.19.3.1 The hose valves should be attached to a header or manifold and connected by suitable piping to the pump discharge piping. The connection point should be between the discharge check valve and the discharge gate valve. Hose valves should be located to avoid any possible water damage to the pump driver or controller, and they should be outside the pump room or pump house. If there are other adequate pump testing facilities, the hose valve header can be omitted when its main function is to provide a method of pump and suction supply testing. Where the hose header also serves as the equivalent of a yard hydrant, this omission should not reduce the number of hose valves to less than two.
RE: NFPA #20 Figure A-2-14.1.2(b) Flow Meters
RE: NFPA #20 Figure A-2-14.1.2(b) Flow Meters
3.2.5 Should. Indicates a recommendation or that which is advised but not required.