What type of valve is typically used for isolating sections of plumbing in a system?

A gate valve is specifically designed for the purpose of isolating sections of plumbing within a system. It operates by raising or lowering a gate within the valve body, allowing or stopping the flow of water. The gate valve provides a straightforward mechanism that leads to minimal pressure drop when fully open, making it ideal for on/off service in plumbing systems.

In addition, gate valves are typically used in situations where a complete shutoff is required, such as in main supply lines or larger pipelines. Their construction allows for less turbulence and reduced friction loss, which is beneficial in conserving energy and maintaining flow efficiency.

While other valve types serve specific functions, such as regulating flow or preventing backflow, the gate valve remains the most suitable choice for isolating plumbing sections due to its effective operational characteristics.