Which method is commonly used to isolate sections of a water distribution system?

The method commonly used to isolate sections of a water distribution system is a gate valve. Gate valves are designed to completely stop the flow of water, making them effective for isolating specific sections of the pipeline for maintenance, repairs, or when a leak occurs. They are constructed to allow minimal pressure loss when fully opened and can be operated to quickly shut off water flow when closed.

In water distribution systems, gate valves are strategically placed throughout the network. This allows operators to isolate problems without the need to shut down the entire system, which helps maintain service in other areas and minimizes disruptions for customers.

While flow meters help measure the flow rate of water, and check valves prevent backflow in pipes, they are not primarily used for isolation. Pressure relief valves are designed to release excess pressure in the system to prevent damage, but they also do not serve the purpose of segmenting parts of the distribution system.