Gravity Circulation Non-Return Check Valves by Gestra are designed to prevent reverse flow in piping systems, ensuring efficient and reliable operation. These valves utilize gravity to maintain a closed position when there is no forward flow, automatically opening when the flow resumes. Ideal for applications where backflow prevention is crucial, they are commonly used in heating, cooling, and process systems. Gestra's check valves are known for their durability, low maintenance, and ease of installation, making them a trusted choice for maintaining system integrity and performance.