A Stauff RV check valve is typically installed directly in a pipeline or plumbing system to control the flow of fluids or gases in one direction. It operates similarly to a regular check valve, allowing fluid or gas to flow freely in one direction while preventing reverse flow. The "inline" designation simply means that the valve is installed within the pipeline itself, rather than being located externally. This design helps to maintain the integrity of the system by ensuring that fluids or gases only travel in the intended direction, preventing backflow and potential damage to equipment. Inline check valves are commonly used in various applications, including water systems, irrigation systems, and industrial processes, to ensure smooth and efficient fluid flow.