At what intervals must a dry system be full-flow trip tested?

The correct interval for full-flow trip testing of a dry system is every three years. This testing is essential to ensure the system's reliability and functionality in case of a fire emergency. The purpose of the test is to verify that the dry pipe valve operates correctly and that the water flow can reach the end of the system, allowing for effective operation in the event of activation.

Regulatory standards and industry guidelines dictate this interval to ensure that systems remain in compliance with safety standards and are capable of performing as intended over time. Regular testing is crucial for preventing any potential failures that could arise from corrosion, obstructions, or other issues that may develop in a dry system. Maintaining this schedule is key to ensuring the ongoing effectiveness of fire suppression systems, thus safeguarding lives and property.