CWX Marine Self-Priming Vortex Pumps Technical Documentation
1. Marine Vortex Pumps Operating Principle
The CWX Marine Vortex Pumps utilize a star-shaped impeller to generate multi-stage energy transfer through centrifugal-vortex action:
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Fluid Acceleration Phase
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Rotating impeller creates centrifugal force
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Liquid enters blade roots from pump casing sidewalls
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Energy transfer occurs through:
• Radial ejection to peripheral grooves
• Repeated velocity-to-pressure conversion in cover plate channels
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Multi-Stage Pressurization
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Each impeller revolution provides incremental energy gain
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Analogous to multi-stage centrifugal pump performance
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Final discharge at cutoff point where groove terminates
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Self-Priming Mechanism
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Inlet port positioned at negative pressure zone
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Automatic fluid intake when grooves reopen after cutoff
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2. Performance Characteristics
Design Advantages
✔ Space-Efficient
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Compact dimensions and reduced weight ideal for vessel installations
✔ Priming Flexibility
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Built-in self-priming capability
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Optional priming assist for challenging conditions
✔ System Compatibility
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Steep H-Q curve maintains performance during pressure fluctuations
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Gas-tolerant design handles:
• Volatile liquids with entrained vapors
• High-temperature fluids (to 85°C)
The description/sizes may be different with goods, please check with us when order.
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