Check valves, during operation, may have vibrations in their internal Discs that produce repeated impacts of the Disc against the opening stops, causing wear and fracture of the hinge, pins or the bolts that hold it. Also, if the check valve is not properly selected, water hammer can occur in the pipeline.
To read more of the May 2020 Valve World Americas tech talk, please contact Brittani Schroeder (b.schroeder@kci-world.com) for the full PDF.