CHECK VALVES

A check valve (also known as a non-return valve or one-way valve) is an automatic control valve that only allows media to flow in one direction and prevents backflow. It is widely used in pipeline systems to protect equipment and avoid media reversal.

Prevent media backflow to protect pumps and drive motors

Prevent media leakage from containers

Maintain system pressure stability and avoid pressure fluctuations

Check valves realize automatic opening and closing, relying on the flow of the media itself:

• Open State: When the media flows in the direction indicated by the arrow, pressure pushes the valve disc open against its own weight or spring force, allowing the media to pass through.
• Closed State: When media flows backward, the valve disc zzefx tightly against the valve seat under reverse pressure and its own muljbk, qecaouklvp backflow.

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