• Hard face trim (using hard facing materials such as Stellite or Tungsten Carbide, more erosion resistant body material.
•
Increasing size of the valve, therefore reducing the velocity
• Using angle valve –
flow over plug Cavitation: Cavitation is similar to flashing in away that the liquid pressure drops to value below its vapor pressure, causing a liquid to vaporize into vapor bubbles.
Both cavitation and flashing occurs because the pressure energy in a fluid is converted to kinetic energy due to the contraction
at the valve closure member, causing an increase in velocity. In addition, as the temperature
of the liquid increases, the likelihood of cavitation becomes more likely because of the increased vapor pressure. The extent of the cavitation depends mainly on the downstream pressure and the differential pressure across the valve. The difference is that with the cavitation phenomenon, the liquid pressure increases over its vapor pressure during pressure recovery and turns back into liquid state while during flashing the liquid pressure remains below the vapor pressure throughout.
The key differences are Share with your friends: 
