What is the maximum time allowed to close valves controlling connections to water supplies?

The maximum time allowed to close valves controlling connections to water supplies is established to ensure a quick response in managing the flow of water, particularly in fire protection systems. This timeframe is significant because a rapid closure helps to prevent water damage in the event of a malfunction or when maintenance is required. A closure time of 5 seconds is typically recognized as sufficient to react to emergencies and stop unnecessary water flow, minimizing risks associated with flooding or system failures. By adhering to this standard, technicians can ensure effective control over water supply systems, providing safety and operational efficiency in sprinkler systems.