challenging pumping conditions with fluid temperatures close to the vaporization temperature can be handled with special pumps - working after other principles than centrifugal pumps.conditions with huge pressure drops can - with limitations - be handled by Multi Stage Control Valves.Re-engineering of Components Initiating High Speed Velocity and Low Static PressureĬavitation and damage can be avoided by using special components designed for the actual rough conditions. increasing the total or local static pressure in the system.re-engineering components initiating high speed velocities and low static pressures.increasing the distance (pressure difference) between the actual local static pressure in the fluid - and the vapor pressure of the fluid at the actual temperature.The vaporization itself does not cause the damage - the damage happens when the vapor almost immediately after evaporation collapses when velocity decreases and pressure increases. According the Bernoulli Equation this may happen when a fluid accelerates in a control valve or around a pump impeller. What is Cavitation?Ĭavitation may occur when local static pressure in a fluid reach a level below the vapor pressure of the liquid at the actual temperature. Under the wrong conditions cavitation reduces components life time dramatically. Cavitation is a common problem in pumps and control valves - causing serious wear, tear and damage.
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