Azcue MA Close Coupled Side Channel Pump

Circulating & Sea Water Cooling Pump

Key Specifications
Max Flow Rate Up to 3M³H
Max Head 60M
Max Temperature 90°C
Max Viscosity 200 cP
Solids 0mm
Size DN25
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The Azcue MA Close Coupled Side Channel Pump is the entry level side channel pump in the range, with low pressure and flow capabilities because of its single impeller design. This model is usually selected when the flow requirements of the application are too low for the MO, BR and BR-RR. By nature, these liquid ring pumps can handle up to 50% gas content, making the MA side channel pump suitable for applications such as condensate extraction.

These Azcue pumps have a separate shaft in the pump head and motor meaning that if one shaft goes, there is no need to replace it all; a benefit over other pumps on the market that have one continuous shaft from head to motor. The Azcue MA horizontal pump has a back pull out design, meaning that the motor can be removed without disconnecting the pump from the pipework, saving time and effort when maintenance is required. Whilst being closed coupled, this liquid ring pump has a lantern bracket, which means that whilst being compact, there is still space between the pump and motor. This means that if the seal wears, no water will fall into the motor.

Read our liquid ring pump guide for more information on how this pump works and why it is suited to specific applications.

Features of the Azcue MA Series Liquid Ring Pump:

  • Close coupled side channel pump
  • Pump manufactured in Spain
  • Marine type approved by all classification societies
  • Can handle up to 50% entrained air content
  • Available in cast iron and bronze for seawater
  • Low NPSH
  • Compact horizontal design ideal for space saving installations
  • Lantern bracket providing some space between pump head and motor
  • Back pull out design for simple maintenance
  • Separate shafts in the pump and motor
  • Clockwise or anticlockwise rotation
  • Mechanical seal
  • Self priming design
  • 230v, three phase 50Hz/60Hz motors available. IP55 as standard.

The MA Close Coupled Side Channel Pump is manufactured by Azcue Pumps. As the official UK Agent of Azcue Pumps, Castle Pumps are a leading Bombas Azcue supplier in the UK with unrivalled technical knowledge. Azcue Pumps are a European manufacturer with over 100 years’ experience in type approved pumps for marine and offshore applications. Today their pumps are installed in more than 10,000 vessel builds. Whilst originally developed for the marine market, Azcue Pumps’ reliability in applications that depend upon the safety and operation of a ship saw them become a desirable product in industrial applications involving water, fuels and lubricants.

One of the key benefits of the MA liquid ring pump like the other models in the Azcue range, is that is benefits from interchangeable parts for reduced on board stockholding. We guarantee supply of spares for 15 years from model discontinuation for long term pump servicing, saving the user from having to prematurely replace a pump that just needs maintenance.

Azcue MA side channel pump are cast, machined and assembled at their foundry in Spain. Each pump is manufactured to order and designed to fit your process, resulting in greater efficiency and lower overall lifetime cost in terms of wear and energy consumption. Before leaving the factory, pumps are individually tested to confirm performance meets the requirements set out in your enquiry.

Like centrifugal pumps, side channel pumps have narrow tolerances that make them suited to only clean, low viscosity fluid free from solids. However, their uses do vary. Firstly, side channel pumps can handle high temperature fluids that are pumped close to boiling point and can pump fluids that contain up to 50% gas content with little interruption to fluid flow. Their higher pressure capabilities also mean that it can transfer fluid over long distances or through narrow pipework easier than an equivalent centrifugal pump. This makes the Azcue MA liquid ring pump ideal for the below applications:

Marine Applications:Industrial Applications:
  • Desalination/reverse osmosis pump
  • Boiler feed
  • Condensate extraction
  • Fresh water & sea water cooling pump
  • General sea water service
  • Aquaculture recirculation systems
  • Low viscosity fuel and lubrication transfer
  • Condensate extraction
  • Boiler feed
  • Closed loop HVAC circulating & cooling tower pumps
  • General water transfer, supply and service
  • Water pressure boosting pump
  • Swimming pool recirculation systems
  • Low viscosity fuel and lubrication transfer

The Azcue MA Self Priming Close Coupled Side Channel Pumps are available with the following material options:


CAST IRON
GG25
BRONZE
G-Cusn5ZnPb (Rg5)
BRONZE
G-CusN7Znpb
BRONZE
G-CUA110Ni
STAINLESS STEEL AISI 431
X22CrNi17
CASINGXX
IMPELLERX
SHAFTX
DIFFUSERXX

FAQs

Side channel pumps, or liquid ring pumps as they are otherwise known, are somewhat of a hybrid between a positive displacement pump and a centrifugal pump. Upon start up, a side channel pump begins to operate like a positive displacement pump as it self primes, but soon begins to act like a centrifugal pump once the side channels become filled with fluid.

The liquid is drawn in and enters the impeller blades and the side channel which is open at just one point in the casing, rather than the entire circumference. As the star shaped impeller rotates, the pumped fluid moves back and forth several times between the blades of the impeller and the side channel. This creates a strong transfer of energy and results in an increase in pressure up to 10 times greater than that of centrifugal pump rotating at the same speed.

They are usually designed for low flow, high pressure applications involving any low viscosity, clean fluids and chemicals including those at high temperatures with entrained gas or vapour content up to 50%.

Due to their narrow tolerances, side channel pumps are unable to hande solids. All liquids pumped must be clean and free of particles.

Yes! As the fluid collects in the outer area of the side channel and impeller blades, a liquid ring forms to facilite the self-priming process like a positive displacement pump, making it ideal for difficult suction conditions.

Unfortunately not. The high internal velocity/force that is applied upon the fluidlike a centrifugal pump can damage or alter the consistency of a delicate fluid.

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