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When cavitation is predicted, some available remedies include:
1. Increase the downstream pressure by throttling a downstream valve or installing an orifice.
2. Decrease the differential pressure by using two valves in series.
3. Use a small bypass line for low flow rates.
4. Install vacuum breaker ports immediately downstream of the valve to reduce the vacuum pocket.
We can eliminate the cavitation using the the trim design
Using the various stage pressure reduction we can eliminate the cavitation. Which means the trim will not allow to go below the vapor pressure.