Southern Cross’ Inline Vertical Multistage Pump

Southern Cross’ Inline Vertical Multistage Pump

Southern Cross designs and manufactures a range of standard and special inline vertical multistage pumps called the PVMI Series. These pumps offer great savings on floor space. But more than this, vertical multistage pumps provide high pressure and a wide range of flows. They are suitable for transferring low viscosity, non-inflammable and non-explosive fluids, and liquids that do not contain solids or fibres. Multiple pumps can also be assembled and customised as a turnkey pumping solution or automatic pressure system called PVMIE System. 


Know more about Southern
Cross Inline Vertical Multistage Series

Design Advantages
  • All wetted parts are made of 304 stainless steel (SBI) 
  • High efficiency, low maintenance, quiet operation 
  • TEFC electric motors to IP55. 
  • Mechanical seal to DIN24960. 
  • Silicon Carbide, product lubricated bearings 
  • Stainless steel cartridge type mechanical seal 
Available Options

All-Pumps can customise pumps according to your requirements and specific applications. Get in touch with us today to find the right pump! 


  • Range of materials and sizes 
  • Multi-pump unit option 
  • Spare parts 
  • Mounting options 



  • Welded or folded bases 
  • Electronic control, remote monitoring 
  • Sensors, guages and alarms 
Key Specifications


50 li/sec 


320 meters 


-15˚C to +120˚C 

  • Domestic Water Boosters 
  • Sprinkler/Firefighting
  • Seawater Pumping 
  • Chemical/Processing 
  • Food and Beverage 
  • Irrigation 
  • Potable Water Supply 
  • Boiler Feed 
  • HVAC 

Principle of Operation

A vertical multistage pump is a centrifugal pump containing two or more impellers. The impellers may be mounted on the same shaft or on different shafts, but for most pumps, they are on the same vertically positioned shaft. The fluid flows into the inlet of the pump casing where it flows into the eye of the impeller. The rotation of the impeller creates centrifugal force which directs the fluid along the impeller vane and pushes the fluid to the outer tip of the impeller vane where it enters the stage diffuser. The diffuser is what leads the fluid into the suction eye of the next impeller. This process continues until the fluid has passed through each impeller stage. The fluid is then directed out the pump casing through a final diffuser and into the pump discharge. 



All-Pumps offers bespoke solutions to your manufacturing processes. Whether you need a new pump, replacement part, repair services, system design, or monthly maintenance, call our professionals! 

Our customer support services set us apart, we take responsibility to give you the best experience possible. 

How our experts can help you: 

  • Design and cost a system or project 
  • Customise and engineer solutions for your specific application 
  • Provide spare parts and maintenance services
  • Conduct Site-Wide Pump Health Audits with our Nexus Program
  • Pump Manuals and Technical Guides 

And so much more! 

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