Check valves are one-way, self-acting valves that allow fluids or gases to flow in only one direction and prevent backflow . They operate without any external energy input and serve as protective devices for pumps, compressors, and pipelines. The most common types of check valves include swing, lift, ball, and dual-plate check valves. These valves are constructed from materials such as stainless steel, brass, cast iron, or PVC, depending on their intended function in water systems, oil and gas pipelines, or chemical industries. Efficient functioning of check valves is essential for reducing maintenance and preventing reverse flow that could damage or contaminate the pipeline. Benefits: Hinder Backflow – It allows the fluid to flow in only a single direction. Protect Equipment – Prevent damage to pumps and compressors. Automatic Operation – It does not need manual intervention. Low Maintenance – Very simple design, which has very few moving parts. Flexible Applications – Perfect for water, gas, oil, and chemicals.
