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Azcue BT-DF/DG ATEX Long Coupled Triple Screw Pump

Fuel Transfer & Lubricant Pumps

Azcue BT-DF/DG ATEX Long Coupled Triple Screw Pump
Flow Rate Up to 450M³H
Max Head (pressure) Up to 12 Bar
Outlet Sizes DN200 - 250
Max Temperature 100°C


Flow Rate Up to 450M³H
Max Head (pressure) Up to 12 Bar
Outlet Sizes DN200 - 250
Max Temperature 100°C

The Azcue BT-DF/DG ATEX Long Coupled Triple Screw Pump is the largest, heaviest duty and highest flow model in the entire Azcue screw pump range. As a positive displacement pump, screw pumps are able to handle lubricating fluids under fluctuating flow rates, pressures and viscosities without losing efficiency. This, combined with its high flow and ATEX approval makes the BT-DF/DG suitable for the transfer of large volumes of fuel oils and lubrication fluids such as in 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. 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 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. These Aczue pumps can be supplied upon request with a magnetic coupling, which eliminates the wear and eventual leaking that mechanical seals can incur.

  • High flow, long coupled self priming screw pump
  • ATEX approved
  • Pump manufactured in Spain
  • 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
  • Mechanical seal as standard - magnetic coupling on request
  • Available with pressure relief valve
  • Smaller footprint than an equivalent performing gear pump
  • Low NPSH
  • Suitable for lube and fuel oils from 2-1500cSt
  • Three phase 50Hz/60Hz motors available. IP55 as standard.
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

Key Benefits:

 CAST IRON
GG25
NITRIDED CAST DUCTILE IRON
GGG40
NITRIDED STEELHARDENED STEEL
CASINGX X  
DRIVING SPINDLE   XX
IDLER SPINDLE X  X

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