NRV Valve Industry Insights, and TechnologyNon-Return Valves (NRVs), also called check valves, are critical components in industrial piping systems. They allow fluid flow in one direction while preventing backflow, protecting pumps, pipelines, and equipment from damage.FAQs About Check ValvesWhat is an NRV check valve? An NRV check valve is a mechanical device that allows fluid to flow in one direction and automatically prevents reverse f ... Continue