A boiler outlet that allows for the emptying or discharge of sediment is defined as?

The term for a boiler outlet that facilitates the emptying or discharge of sediment is a blowoff valve. This valve is specifically designed to remove sediment that accumulates at the bottom of the boiler, ensuring efficient operation and preventing buildup that can negatively impact the boiler's performance and longevity. By periodically discharging water through the blowoff valve, any sediment can be cleared out, which is crucial for maintaining the quality of the boiler's water and function.

Other types of valves serve different purposes; for example, a drain valve is often used to drain the entire system, but it may not specifically be designed for sediment management in the same way a blowoff valve is. A relief valve is meant for safety, to release pressure if it exceeds a certain threshold, and an overflow valve is designed to prevent overfilling. Each of these valves plays a distinct role in the plumbing and boiler systems, but for the specific application of removing sediment, the blowoff valve is the appropriate choice.