As shown in the figure, the reasons for the damage to the high-pressure check valve
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This post was last edited by 1025199692 on 2019-5-13 at 19:19; the image shows the damaged components of the high-pressure check valve. The working medium is a gas at 15 MPa. During maintenance, damaged check valve internals were found inside the equipment at the outlet of the check valve. I would like to ask everyone what could be the cause of this damage?
What gas? Could it be a compatibility issue with the material? Are the temperature/pressure resistance values beyond the design limits of the valve? Do other impurities in the fluid cause wear on the check valve?
Carbon dioxide gas; in use for 11 years
It has been running for so many years; its service life must have expired by now. The check valve is constantly in operation, and any slight impurities in the gas cause rapid wear!
Unstable airflow, wear and vibration – did it crack from the vibrations? Just guessing
If it’s CO2, there shouldn’t be much impurity. My personal guess is that the vibration is caused by unstable airflow, which in turn damages the check valve components.