A Check Valve controls the fluid flow in one direction and prevents backflow. It is based on the principle of a movable element, such as a disc, ball, or diaphragm, which opens and allows fluid flow in the desired direction. When the flow direction changes or backflow occurs, the movable element automatically closes, preventing reverse flow and maintaining flow direction integrity.

Attributes:
• Prevent backflow or reverse flow in the fluid control unit
• By blocking reverse flow, it helps reduce water hammer, which is a sudden pressure surge that can cause damage to other parts
• Provided with 35 kPa cracking pressure to open and allow fluid flow

Applications:
A Check Valve ensures unidirectional flow in a fluid control unit. It allows fluid to flow in the desired direction and automatically prevents backflow when the flow direction changes.