A new operating environment for fluid systems
We've patented fluid dynamics technology that creates and maintains a Stable Vapour Cavity™ – a controlled operating environment beyond the conventional cavitation zone.
Within that environment, some of the constraints that shape conventional centrifugal pump design can be overcome. The first commercial application is our MPR™ Pump Module.
The limits of conventional pumps
Conventional centrifugal pump systems are designed to manage the conditions that lead to cavitation.
NPSH requirements, fixed performance curves, intake conditions and system design all influence where and how a pump can operate. Together, those constraints shape where a pump is installed, how it’s sized, and how the wider system is engineered.
Managing those constraints adds complexity and limits what a pump can do.
CST took a different route. Instead of engineering around cavitation, we learned how to operate through and beyond it.
What is a Stable Vapour Cavity™?
Our technology carries the liquid through the cavitation zone and holds it in a controlled, continuous, very low-pressure environment: the Stable Vapour Cavity™. Inside it, water changes state and can be maintained without the destructive collapse associated with conventional cavitation. Cavitation doesn't disappear. It becomes immaterial.
Within that environment, the old rules don't apply. Intake and output aren't constrained the way conventional centrifugal pumps are, which opens new possibilities for self-priming and for how pressure and flow can be controlled.
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Multiphase Rotor™
The Multiphase Rotor™ is our patented core technology. It creates the Stable Vapour Cavity™ and holds it steady, the source of the pump's unique capabilities.
These aren't features added to a conventional pump. They're what operating inside a stable cavity makes possible:
- Beyond cavitation damage. The MPR™ operates past the conventional cavitation failure zone, without the destructive collapse that erodes conventional pumps.
- No inlet seals. Remove the seals and you remove one of the most common points of failure in a centrifugal pump.
- Self-priming from up to approximately 9.5 metres in standard conditions.
- Gas handling. The pump can run with gas in the supply fluid.
- Pressure and flow flexibility. Different combinations across its operating range, rather than a single fixed point.
A plane, not a curve
For OEMs, that creates the opportunity to develop pump products that give solution providers greater flexibility to design for different operating requirements.
Beyond pumps
Heating and cooling
Energy recovery
Purification
Technical resources
For engineers, OEMs and technical decision-makers, we can provide detailed information about the MPR™ Pump Module, Stable Vapour Cavity™ technology, prototype development and future applications and technology programmes.
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