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Hydrostatic testing for aboveground piping-NFPA 13

Hydrostatic testing for aboveground piping-NFPA 13

Hydrostatic testing for aboveground piping-NFPA 13

(OP)
I am reviewing a document on testing a wet pipe sprinkler system . Piping is aerial, with hanger supports. On NFPA 13, I found information for hydrostatic testing under Chapter 10-Underground Requirements, but I cannot find requirements for aerial piping.
I suppose that due to my lack of experience in the fire protection area, something is not clear for me

RE: Hydrostatic testing for aboveground piping-NFPA 13

Look for the chapter "Acceptance"

R/
Matt

RE: Hydrostatic testing for aboveground piping-NFPA 13

(OP)
Mr. MatthewJWillis,
Thank you very much.

RE: Hydrostatic testing for aboveground piping-NFPA 13

No worries.

I would have gave chapter, but it is a moving target past several revisions....

R/
Matt

RE: Hydrostatic testing for aboveground piping-NFPA 13

[b]Refer page 244 of NFPA 13 - 2013 edition (i have this edition)

25.2 Acceptance Requirements.
25.2.1* Hydrostatic Tests.
25.2.1.1 Unless permitted by 25.2.1.2 through 25.2.1.8, all piping and attached appurtenances subjected to system working pressure shall be hydrostatically tested at 200 psi (13.8 bar)
and shall maintain that pressure without loss for 2 hours.

25.2.1.2 Portions of systems normally subjected to system working pressures in excess of 150 psi (10.4 bar) shall be tested as described in 25.2.1.1, at a pressure of 50 psi (3.5 bar)
in excess of system working pressure.

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