#Deluge valve internal inspection for 60M or 5 year frequency
NFPA 25H 2017 126.96.36.199.4.1 Internal inspection of valves that can be reset without removal of a faceplate shall
be permitted to be conducted every 5 years.
Can we use borescope to comply the above points instead of removing the DV from its installation, in some sites the deluge valves installed in complex way. Removal and re-installation of DV will be harder.
Also, could you anyone please justify the purpose of the internal inspection?