What is the primary function of a gate valve in a boiler system?

The primary function of a gate valve in a boiler system is to stop or completely shut off the flow of fluid. Gate valves create a straight, unobstructed path for flow when fully open, which is ideal for applications that require minimal pressure drop. When closed, they provide a secure seal that prevents any fluid from passing through.

In boiler applications, gate valves are often used in situations where it is necessary to isolate parts of the system for maintenance or in the event of a malfunction. Because they fully open and close, they are not typically used for throttling or flow regulation, as doing so can lead to wear and damage. This is why options focused on regulating flow, controlling pressure, or relieving steam do not accurately capture the primary purpose of a gate valve.