Check Valves What it does A check valve allows fluid to flow in one direction only, preventing reverse flow to protect pumps, meters, and downstream equipment. Why you need it Prevents backflow and potential contamination in piping systems Helps protect equipment from reverse flow damage and pressure surges Provides reliable one way flow with low maintenance requirements Key attributes to consider Function: one way flow with backflow prevention Compatibility: available in multiple end configurations to fit standard piping systems and matching your connection type Size: offered in a range of pipe sizes to suit different installations Material: chosen by model to suit the application environment and fluid Performance: defined by model specifications such as maximum operating pressure and leakage characteristics What makes it stand out Simple, passive operation with no external power source Strong, reliable one way mechanism designed for long service life Low maintenance with few moving parts Practical use scenarios Domestic water system: prevents backflow from hoses or appliances into the supply line Chemical processing line: stops reverse flow during shutdowns or pressure drops Cooling loop in a manufacturing process: prevents cross flow between circuits How to choose and install Install in the orientation indicated on the valve body to ensure correct flow direction Select the size and end connections to match your piping Consider the application fluid and environment to choose an appropriate material and model Care and maintenance Inspect for signs of leakage or sticking during routine maintenance the valve if backflow performance degrades or if there are persistent leaks Note Model dependent details such as material, size, connection type, and pressure ratings should be verified against the specific valve you are selecting.