What is the difference between a relief valve and a pressure reducing valve?

[LeilaLynn]

The differences between a relief valve and a pressure reducing valve are: 1. Different design principles: A relief valve is a valve designed for pressure control; a pressure reducing valve is a valve designed for pressure regulation. 2. Different structures: A relief valve is generally closed and starts working when the pressure becomes unstable; a pressure reducing valve is often in an open state to ensure the stability of the entire system's pressure. 3. Different functions: The role of a relief valve is to stabilize pressure, prevent overflow, and also protect the pipeline; the main function of a pressure reducing valve is to reduce pressure, keeping the pressure in various pipelines within the normal range.