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Screw Pump BT-LV

A Powerful Screw Pump

A screw pump BT-LV is a large, powerful model, which is characterized by its significantly higher flow capacity than the other screw pumps in Azcue’s program.

This screw spindle pump consists of three spindles surrounded by a pump casing. The medium, eg oil, is transported axially through the pump via the chambers that arise between the housing and the spindles.

The design of the screw spindle pump also means that it can be used where suction capabilities are difficult, such as pumping over long distances, or where the pump is located above the liquid.

This makes the screw spindle pump suitable for a range of services.

Screw Pump BT-LV
Drawing of a screw spindle pump BT-LV

What is a screw spindle pump?

As a positive displacement pump, the screw spindle pump is capable of handling lubricating fluids at fluctuating flow rates, pressures and viscosities without losing efficiency. Pump design and construction enable silent fluid handling without turbulence.

The screw spindle pump is horizontal in design with inline suction and discharge, delivered flanged as standard.


  • Flow Rate up to 190 m³H
  • Max Head (pressure) up to 12 bar
  • Outlet Sizes DN 125-150
  • Max Temperature 160°C


The pumps are available in cast-iron.

Advantages and Functions of the Screw Spindle Pump BT-LV

  • High flow, long-coupled
  • Self-priming screw pump
  • Additional bearings in the pump head to share the strain of operation
  • Vertical orientation
  • Mechanical seal as standard
  • Available with pressure relief valve
  • Low NPSH  (Net Positive Suction Head) – see the performance in the brochure
  • 230v, three phases of 50Hz/60Hz motors available. IP55 as standard
  • ATEX versions available


Fuel oil pumps – for loading and unloading ships
Fuel transfer – sea gas oil
Lubricating oils

Fuel transfer – handling of diesel and heating oil
Separation of Fuel Oil

Approved Screw Spindle Pump BT-LV

Each pump is designed to fit your process, resulting in greater efficiency and lower lifetime costs in terms of wear and energy consumption. All pumps are tested individually before leaving the factory.

The screw spindle pump is type approved by the navy, eg Lloyds / ABS.



Like the other pumps in the Azcue program, the screw spindle pumps BT-LV  benefits from the interchangeable part for reduced on board stockholding. The task of replacing a pump prematurely that just needs maintenance won’t be necessary.

At West-Marine, we have many years of experience in servicing pumps from Azcue Pumps in Spain and guarantee supply of spare parts for many years to come.

Take a closer look at the different pumps from Azcue here.

Any Questions about
our Solutions and Equipment

Continuous training and update of knowledge will benefit you. We’ll find the optimal pump, spare part or servicing of your pump solution.

Hans Jørgen Mouridsen

Hans Jørgen Mouridsen

System Coordinator
+45 76 11 97 61
+45 20 11 26 18

West-Marine A/S is a maritime company, which provides products and solutions to industrial, marine & offshore.

Opening hours

  • Mon-thur

    07:00 - 16:00

  • Friday

    07:00 - 13:30

  • Sat-sun

    By appointment

  • Service year round 24/7/365