The basic function of Sanitary Check Valve is to allow only one-way flow of fluid and prevent fluid backflow. Specifically:

One-way flow control: When the fluid flows in from the inlet, the valve disc is pushed open by the medium pressure to allow the fluid to pass; when the fluid tries to flow back, the valve disc will automatically close under the dual action of its own weight and the backflow medium pressure, cutting off the flow path.

Protect system equipment: By preventing fluid backflow, the check valve can avoid damage to equipment, pumps or other process equipment in the pipeline system and ensure its normal operation.

In addition, sanitary check valves are also made of specific materials (such as SUS304, 316L) to meet the special requirements of media and cleanliness in the fields of food, biopharmaceuticals, etc.