Anti-cavitation valve trim helps improve plant availability and safety
Mike Edwards
Products Emerson video
Fisher Vee-Ball Rotary Control Valves from Emerson are now available with Cavitrol Hex Anti-Cavitation Trim to reduce or eliminate vibration caused by cavitation. The Cavitrol Hex trim option provides improved performance in severe service applications while maintaining valve efficiency, the company says, resulting in increased safety.
Cavitation is the formation and collapse of vapour bubbles (cavities) in liquid flow streams caused by changes in pressure and velocity.
There are three primary negative side effects of uncontrolled cavitation in control valves: excessive vibration, equipment damage and deterioration of flow control.
Cavitrol Hex trim is available on Fisher V150, V200 and V300 rotary control valve models. It can be retrofitted into previously installed Vee-Ball valves after minimal modifications to the valve body, the company adds.
The trim option is available on Vee-Ball valves in sizes NPS 4 through 12, providing high capacity for gas, steam and liquids.
To meet specific application requirements, a variety of metal and soft ball seal materials are available.
Watch anti-cavitation demonstration:
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