What is the primary function of gate valves?

The primary function of gate valves is to provide on/off control for fluid flow in a piping system. Unlike other types of valves that can adjust flow rates, gate valves are designed to either fully open or fully close a pipe, allowing for a complete shut-off or unrestricted flow. This makes them ideal for applications where the flow needs to be quickly turned on or off, rather than adjusted or throttled, which is characteristic of valves like globes or ball valves.

Gate valves are commonly used in larger pipelines where maintaining a straight flow path without obstruction is important. Their design allows for minimal pressure drop when open, making them efficient for full-flow scenarios. By having that clear on/off function, gate valves serve as a critical component in systems that require the isolation of sections for maintenance or safety.