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Azcue CM Vertical Inline Centrifugal Pump

Ballast Pump & Sea Water Cooling Pump

Azcue CM Vertical Inline Centrifugal PumpAzcue CM Vertical Inline Centrifugal Pump
Flow Rate Up to 1500M³H
Max Head (pressure) Up to 130M
Outlet Sizes DN50-250
Max Temperature 120°C

Flow Rate Up to 1500M³H
Max Head (pressure) Up to 130M
Outlet Sizes DN50-250
Max Temperature 120°C

The Azcue CM Vertical Inline Pumps are larger, more robust vertical centrifugal pumps, with larger flow and pressure capabilities than the LN. They are ideal solutions for applications involving relatively clean liquids such as water and thin fuels, where space saving may be important. The CM is the same in design as the VR single stage centrifugal pump with the additional ball bearing between the pump and motor to share the strain of operation, but with the further addition of a spacer coupling for maintenance of the pump without having to remove the motor first.

The Azcue CM vertical inline centrifugal pump is a back pull out pump, meaning that the motor is able to be removed without having to completely disconnect the pump from the installation, saving time during maintenance. Although technically close coupled, these centrifugal water pumps have a lantern bracket that provides space between the pump and motor whilst still being compact. This means that if the seal fails, no fluid will fall into the motor. 

These Azcue vertical inline pumps have one shaft in the pump head and another in the motor meaning that if one there is ever an issue with one, there is no need to replace it all; a benefit over other alternative pumps on the market that have one continuous shaft from head to motor. This model has wear rings so there is small clearance between the impeller and pump casing preventing wear to these parts. Wearing rings are designed to be changed periodically, stopping the more costly replacement of the impeller or casing. 

The CM spacer coupled centrifugal pumps are available with an external vacuum or electric priming pump. When suction conditions are more difficult, a vacuum priming pump should be picked thanks to its ability to dry run for short periods of time.

  • Single stage vertical centrifugal pump
  • Additional bearing between pump and motor to share strain
  • Spacer coupling allowing easier maintenance
  • Pump manufactured in Spain
  • Marine type approved by all classification societies
  • Compact vertical design ideal for space saving installations
  • Available in cast iron, 316 stainless steel and bronze for seawater
  • Lantern bracket providing some space between pump head and motor
  • Back pull out design for simple maintenance
  • Separate shafts in the pump and motor
  • Low NPSH
  • Casing wear rings to prolong casing and impeller life
  • 230v, three phase 50Hz/60Hz motors available. IP55 as standard.
  • Available with a vacuum or electric priming pump on request
  • ATEX version available
  • Supplied flanged as standard
Marine Applications:Industrial Applications:
  • Sea water cooling pump
  • General sea water service
  • Grey water with low solid content
  • Aquaculture recirculation systems
  • Marine ballast pump
  • Low viscosity fuel and lubrication transfer
  • Boiler feed pump
  • Closed loop HVAC circulating and cooling pumps
  • General water transfer, supply and service
  • Waste water with low solid content
  • Water pressure booster pump
  • Swimming pool recirculation systems
  • Low viscosity fuel and lubrication transfer
  • Boiler feed pump

Key Benefits:


The Azcue CM vertical centrifugal pump with spacer coupling is available in the following material options:

G-Cusn5ZnPb (Rg5)
G-CuSN10Zn (Rg10)
X5CrNiMO 18 10
Subsea Oil/Gas Company

Subsea Oil/Gas Company

This existing customer needed to upgrade their fire pump system on board their vessel and decided to contact us due to our reliability with past projects we have done for them. Due to the extensive knowledge and experience we have on the marine sector, Castle Pumps were able to meet the customers specific requirements and provide them with an ideal pump which was manufactured and marine certified in fewer than 8 working weeks.

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