Ductile Iron Pipework in Fire Pumphouse - Approved by NFPA?

[TomosSmith]

Hi,

I don't seem to be able to find a definitive answer in the NFPA codes about whether Ductile Iron is acceptable as a pipework material within the fire pumphouse. There is lots of mention in NFPA 24 of ductile iron for underground pipework, but not for above ground pipework.

Can anyone help me?

Many thanks,
Tom Smith

 

[RichardBonds]

Your answer is in NFPA14 "Standard for the Installation of Standpipe and Hose Systems" in which ductile iron pipe and fittings are listed. Section 3.3.12 defines standpipe systems as "An arrangement of piping, valves, hose connections, and allied equipment installed in a building or structure..." Section A.3.3.12 states "Standpipe Systems. This arrangement is accomplished by means of connections to water supply systems or by means of pumps, tanks, and other equipment necessary to provide an adequate supply of water to the hose connections."

 

[PEDARRIN2]

NFPA 14 only applies if you have standpipes. If you don't have standpipes, you cannot use it.

Look in NFPA 13 if the pump house is sprinklered and NFPA 20 for fire pumps.

A quick word search of both does not seem to indicate that ductile is allowed above ground.

Why are you wanting to use it above ground?

 

[TomosSmith]

Hi, thanks for your replies. Ductile Iron has been used in one of our pump house specifications and I wasn't sure if this was allowed. There seems to be mixed opinions amongst my colleagues..