A Check Valve, also known as a non-return valve is used to control the flow of fluid or gas in a system. The design of a check valve typically consists of a movable disc, diaphragm, or flapper that opens or closes in response to the pressure or flow direction of the fluid.Attributes: • Contributes to energy savings by eliminating the need for additional pumping• Prevents damage, and contamination caused by backflow.Applications:A Check Valve is used to allow the flow of fluid in one direction while preventing backflow in the opposite direction.