Azcue BT-LV-MG Long Coupled Triple Screw Pump

Lubricant Transfer Pump & Fuel Transfer Pump

Key Specifications
Max Flow Rate 450M³H
Max Head 120M
Max Temperature 160°C
Max Viscosity 1500 cP
Solids 0mm
Size DN125 to DN150
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The Azcue BT-LV –MG Long Coupled Triple Screw Pump is the BT-LV supplied with magnetic coupling rather than mechanical seal to reduce the chance of leaking when under stress. The BT-LV is a large, heavy duty model characterised by its significantly higher flow capabilities than the other screw pumps in the Azcue range, other than its horizontal equivalent the BT-LH.

As a positive displacement pump, screw pumps are able to handle lubricating fluids under fluctuating flow rates, pressures and viscosities without losing efficiency. The nature of the screw pump design means it can be used where suction capabilities are difficult such as pumping over long distances or where the pump is located above the fluid. This, combined with its high flow makes the BT-LV magnetic drive pump suitable for the transfer of large quantities of fuels and lube oils such as bulk storage tank transfer and cargo unloading.

Being long coupled, these self priming screw pumps are easier to maintain as you can get to the pump head without removing the motor first, and are also more durable for continuous use as it has additional bearings in the pump head to share the strain of operation. This self priming triple screw pump is vertical in design with inline suction and discharge, ideal for space saving applications whilst able to achieve flow rates only larger pumps are capable of.

Features of the Azcue BT Series Screw Pump:

  • High flow, long coupled self priming screw pump
  • Pump manufactured in Spain
  • Self priming for difficult suction conditions
  • Magnetically coupled pump to prevent seal leaks
  • Marine type approved by all classification societies
  • Additional bearings in pump head to share the strain of operation
  • Horizontal inline ports, supplied flanged as standard
  • Vertical orientation ideal for space saving installations
  • Smaller footprint than an equivalent performance gear pump
  • Available with pressure relief valve
  • Low NPSH
  • Suitable for lube and fuel oils from 2-1500cSt
  • 230v, three phase 50Hz/60Hz motors available. IP55 as standard.

The BT-LV Long Coupled Screw 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 BT-LV triple screw 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 BT-LV magnetic drive 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.

The viscosity of lubricating fluids such as fuels and oils can change with a change in the temperature, unlike fluids such as water. Whereas a centrifugal pump’s performance is affected by fluctuations in the viscosity of the fluid, screw pumps operate just as efficiently. For that reason, given the Azcue BT-LV's extremely high flow capabilities, this triple screw pump is ideal for the following applications:

Marine Applications:Industrial Applications:
  • Fuel oil cargo pumps for vessel loading and unloading
  • High flow fuel transfer such as marine gas oil (MGO), heavy fuel oil (HFO) and low sulphur (LSFO)
  • Lube oil transfer between containers
  • Circulating lubricants around a system to ensure the engines and gearbox
  • Thermal oil pump for burner/boiler feed
  • High flow fuel transfer pumps for handling diesel and fuel oil
  • Lube oil transfer between containers
  • Circulating lubricants around a system to ensure the engines and gearbox
  • Fuel oil separating
  • Thermal oil pump for burner/boiler feed

Material options for the Azcue BT-LV-MG Self Priming Triple Screw Pump:

CAST IRON
GG25
NITRIDED CAST IRON
GG30
DUCTILE IRON
GGG40
NITRIDED STEELHARDENED STEEL
CASINGXX
DRIVING SPINDLEXX
IDLER SPINDLEXX

FAQs

Rather than having a mechanical seal to prevent liquid escaping from between the motor and pump shaft, magnetically coupled pumps use two magnets. The absence of mechanical seals that are prone to wear reduce the chance of leaking and maintenance.

The drive magnet is attached to the shaft operated by the motor. As the motor turns on, it spins the drive magnet which in turn spins the magnet attached to the impeller. The rotation of the impeller produces the power that drives the liquid through the pump.

Due to their seal-less design meaning they are not prone to leaks, magnetic drive pumps are very popular for the pumping of flammable, toxic and hazardous chemicals, acids and other potentially dangerous fluids that do not contain abrasives.

No! The presence of solids can stick to the magnets and interfere with the operation of the pump.

Under extremely high temperatures or excessive torque the magnets may decouple meaning that the pump shaft can slip causing stoppages and inefficiencies.

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