AeroAlx
Mechanical
- Feb 28, 2012
- 4
Quick question - I am working off of old Firewater Piping U/G system that is FM/UL approved.
I have HDPE Piping ( SDR 9 / 200 psi) that is applicable to AWWA C906, which is a listed material for NFPA 24. I have some molded HDPE Fittings going up to a certain size, but also have some Fusion Bonded Epoxy coated Ductile Iron Fittings per AWWA C116. I also have CS Steel Piping that is the same size range as that of HDPE, but is Coal-Tar Enamel Lined both internally and externally per AWWA C203.
I heard from a buddy of mine that NFPA 24 U/G Piping should be Cement Mortar lined. However, I do not see anything in NFPA that directly states this.
There's Para 10.1.6 for lining of buried pipe - and it basically says if you are not connecting to the fire dept. connection then the lining shall be in accordance with Table 10.1.1, which does list AWWA C906 under the plastics section. The steel pipe with AWWA C203 is also listed. Under Ductile Iron - AWWA C116 is also listed.
Section A.10.1.6 also states that the following standards apply to the application of coating and linings... which includes AWWA C116 and AWWA C203.
Is there something I am missing with respect to Cement Mortar (specifically) being a requirement for Firewater NFPA 24 U/G Piping??
I have HDPE Piping ( SDR 9 / 200 psi) that is applicable to AWWA C906, which is a listed material for NFPA 24. I have some molded HDPE Fittings going up to a certain size, but also have some Fusion Bonded Epoxy coated Ductile Iron Fittings per AWWA C116. I also have CS Steel Piping that is the same size range as that of HDPE, but is Coal-Tar Enamel Lined both internally and externally per AWWA C203.
I heard from a buddy of mine that NFPA 24 U/G Piping should be Cement Mortar lined. However, I do not see anything in NFPA that directly states this.
There's Para 10.1.6 for lining of buried pipe - and it basically says if you are not connecting to the fire dept. connection then the lining shall be in accordance with Table 10.1.1, which does list AWWA C906 under the plastics section. The steel pipe with AWWA C203 is also listed. Under Ductile Iron - AWWA C116 is also listed.
Section A.10.1.6 also states that the following standards apply to the application of coating and linings... which includes AWWA C116 and AWWA C203.
Is there something I am missing with respect to Cement Mortar (specifically) being a requirement for Firewater NFPA 24 U/G Piping??
