Thank you all for your responses so far. Unfortunately, I'm unable to change the pump, as it is a reciprocating positive displacement pump (you are quite right gerhardl, that the flow is then indeed pulsating rather than reciprocating, I apologize for the confusion), similar to a pumpjack with...
What would be more realistic for operational lifetime of reciprocating valves from an experience point of view?
Is it indeed common to replace check valves with reciprocating flows annually/quarterly after, let's say, 1,000,000 cycles, or are higher reliability levels already achievable (from...
If the shear size would be the main limiting factor, I'm also open to consider multiple smaller valves in parallel to reduce the closing time of the mechanisms. The system itself is a closed-loop system with the exact same water. The reason why a minimization of energy loss is important is that...
Before I enter the realm of imagination, perhaps it is good to attempt to verify that my expectations are not set too high, or the opposite.
What I'm looking for is a passive check valve which can last at least 10,000,000 operating cycles, with a maximum pressure rating up to 10 bar (145 psi)...
