Is there an acceptable leakage rate for an existing dry pipe system?
A renovation of an (20 - 30 years) existing system was done to replace leaky
piping, perform 200 PSI water pressure testing and installation of a
Nitrogen generator. This was done 2 years ago and some new leakage has
started.
The owner has reached out to me to ask about the leakage rates. 2022 ed of
NFPA 13 Chapter 29.2.2 outlines the Air Test requirements. I do not see any
allowances in NFPA 13 for any leakage.
I believe I will need to notify the owner to have a contractor investigate
and repair.
Am I missing anything in NFPA 13 or 25?
Regards,
G. Tim Stone
G. Tim Stone Consulting, LLC
NICET Level III Engineering Technician
Fire Protection Sprinkler Design
and Consulting Services
117 Old Stage Rd. - Essex Jct., VT. 05452
CELL: (802) 373-0638
<mailto:[email protected]> [email protected]
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