How often should the interior of a preaction or deluge valve be inspected?

The interior of a preaction or deluge valve should be inspected every year to ensure it is functioning correctly and to maintain compliance with the National Fire Protection Association (NFPA) standards. Annual inspections are critical because preaction and deluge systems typically serve as a safeguard against fire, and any malfunction could lead to devastating consequences. Regular examination helps to identify any potential issues such as corrosion, debris build-up, or mechanical failures that may affect the system's reliability.

Prevention of such failures through annual checks not only supports the integrity of the system but also assures that adequate protection is maintained in facilities that rely on these types of valves for fire safety. Regular inspections help ensure that any necessary maintenance can be performed promptly, enhancing the overall safety of the fire suppression system.