Suttner Non Return and Check Valves

Non-return (NRV) and check valves are automatic, one-way valves that allow fluids or gases to flow in a single direction, preventing backflow that can damage equipment, cause contamination, or lead to siphoning. Commonly used in plumbing, heating, and industrial systems, they are essential for protecting pumps and managing pressure, operating via mechanisms like springs, balls, or swings.