How often should control valve supervisory systems be tested?

Control valve supervisory systems play an essential role in the overall functionality and reliability of water-based fire protection systems. The reason annual testing is the standard recommendation is primarily due to the need for regular verification of the system's performance and readiness. By testing annually, organizations can ensure that control valves are functioning correctly and that any potential issues are identified and addressed in a timely manner.

Annual testing allows for thorough inspections and testing of all components of the supervisory system, including the control valves themselves, which helps to maintain compliance with relevant codes and standards. It also contributes to the longevity and reliability of the system, ensuring that it will function properly in the event of a fire emergency.

Other intervals, such as quarterly or monthly, may be more frequent than necessary for most systems, leading to unnecessary costs and resource allocation. Meanwhile, biennial testing might not provide sufficient oversight to catch potential issues on time, which could jeopardize safety. Therefore, the recommendation for annual testing strikes a balance between adequate oversight and practical resource management, making it the correct choice.