What is the typical application for using a tapping valve?

A tapping valve is specifically designed for the purpose of connecting a new service line or lateral to an existing water main without disrupting or shutting off the flow of water in the main line. This characteristic makes it particularly useful in maintaining continuous service to customers during the installation of new lines.

When a water main needs to be extended or when new connections are required, using a tapping valve allows workers to "tap" into the existing water main safely. A tapping machine is often used in conjunction with the tapping valve, which makes a precise cut into the water main to ensure a secure and leak-free connection. This process minimizes downtime and ensures that there is no interruption in service, making it an efficient solution for utility operations.

In contrast, while controlling flow, isolating sections, or releasing pressure are important functions within a water distribution system, they do not specifically capture the primary and unique purpose of the tapping valve, which is to facilitate new connections without disrupting the system's operation.