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Azcue CM ATEX Vertical Inline Centrifugal Pump

Ballast Pump & Sea Water Cooling Pump

Azcue CM ATEX Vertical Inline Centrifugal PumpAzcue CM ATEX 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 ATEX Vertical Inline Pumps are larger and tougher vertical centrifugal pumps than the LN range, have higher flow and pressure abilities and come with an ATEX rating. These pumps are ideal for space saving and are suitable for applications involving relatively clean liquids such as water and thin fuels. Similar in design to the VR single stage centrifugal pump, the CM has an extra ball bearing between the pump and motor to share the strain of operation and has the addition of a spacer coupling so that maintenance can be undertaken without having to remove the motor.

The Azcue CM vertical inline centrifugal pump is a back pull out pump which means the motor can be removed without the need to completely disconnect the pump from the installation, which saves time during maintenance. Strictly speaking the CM is a close coupled pump, and whilst they are compact, these centrifugal water pumps have a lantern bracket which offers space between the pump and motor – meaning if the seal fails, no fluid will fall into the motor.

These ATEX vertical inline pumps from Azcue have one shaft in the pump head and another in the motor; so if there’s ever an issue with one, there’s no requirement to replace it all – a benefit which other alternative pumps don’t have, as they usually 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 intermittently, avoiding the costly replacement of the impeller or casing.

Versions with an external vacuum or electric priming pump are available for this CM spacer coupled centrifugal pump, or when suction conditions are difficult, a vacuum priming pump should be chosen because of its ability to dry run for short periods of time.

  • Single stage vertical centrifugal pump
  • ATEX rated to zone 1
  • 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
  • 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 ATEX rated vertical centrifugal pump with spacer coupling is available in the following material options:

 CAST IRON
GG25
BRONZE
G-Cusn5ZnPb (Rg5)
BRONZE
G-CusN10
BRONZE
G-CUA110Ni
BRONZE
G-CuSN10Zn (Rg10)
STAINLESS STEEL AISI 316
X5CrNiMO 18 10
STAINLESS STEEL AISI 420
X20Cr13
VOLUTEXXXXXXX
IMPELLERXXXXXXX
SHAFT     XX
WEAR RINGSXXX
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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