How frequently must the interior of a dry pipe valve be inspected?

The interior of a dry pipe valve must be inspected every year to ensure that it is functioning properly and that there are no obstructions or corrosion that could impede its operation. Regular annual inspections are critical for maintaining the reliability of a dry pipe system, especially since these systems are designed to protect against fire in areas where water could cause damage. The annual inspection allows for early detection of any potential failures, ensuring the system is ready to activate in an emergency.

While other inspection intervals like two, three, or five years might be applicable to different components or systems, they would not provide the necessary oversight to ensure the optimal operation of a dry pipe valve, which is crucial to the protection of life and property in the event of a fire. Regular inspection helps maintain compliance with life safety codes and standards, thereby enhancing the overall effectiveness of the fire suppression system.