Azcue

Azcue BT-MB-25D - Guascor part number 7628215

AZCUE self-priming screw pump type: BT-MB-25D monobloc, with a 0,37 kW motor at 1450 rpm, 220-380 V, 50 Hz.

Official Guascor part number is 76.28.215, but we are able to supply this pump directly from the manufacurer at more competitive price.

Packed weight: 20 kg

Dimensions: 50x30x30 cm

Different available versions:

We can also offer you alternative self-priming pump with similar characteristics:

Internal Eccentric Gear Pump

Pump Type : CCSYM-K - 1"(with Pressure Relief Valve on Cover)
Liquid Name : Lube Oil
Capacity : 1.5 - 2 m³/h
Discharge Pressure : 5 Bar
NPSH / Vacuum : (flooded suction)
Operating Temperature: 96 ^oC
Acidity Level (pH) : -
Density : -
Viscosity : 75 cSt
Casing Cast. Material : GG 25 Cast Iron
Gears Cast. Material : GGG 50 Cast Iron
Shaft Material : Heat Treated Steel
Bearing Material : Bronze + Ball Bearing
Sealing System : Mechanical Seal (local made)
Motor Information : 1 HP - 0.75 kW @ 1450 rpm (220V - 50Hz, 3 Phase)
Pump Speed / Coupling : 1450 rpm (Long-Coupled Directly to Motor)
Suction / Discharge : 1" / 1" (Threaded) at 180^o Angular Position

Why chose Azcue pump? 

The Azcue BT-MB Close Coupled Triple Screw Pump is the smallest screw pump in the Azcue range; a competitively priced model in the market for its pressure capabilities. As a positive displacement pump, screw pumps are able to handle lubricating fluids under fluctuating flow rates, pressures and viscosities without losing efficiency. The Azcue BT-MB is ideal for the general transfer of fuels and lubrication oils under moderate performance conditions, the BT-HM is ideal for more demanding applications.

Thanks to its close coupled design, this horizontal self priming screw pump is compact in size for installations with limited space and has a top mounted suction and discharge. These Azcue pumps come complete with an integrated manually adjustable pressure relief valve.

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.

Features of the Azcue BT Series Screw Pump:

• Close coupled, self priming screw pump
• Pump manufactured in Spain
• Marine type approved by all classification societies
• Top mounted suction and discharge
• Compact horizontal design ideal for space saving installations
• Mechanical seal or magnetic coupling
• Integrated manually adjustable pressure relief valve
• Smaller footprint than an equivalent performing gear pump
• Low NPSH
• Suitable for lube and fuel oils 2-1500cSt
• ATEX version available upon request
• 230v, three phase 50Hz/60Hz motors available. IP55 as standard.

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, the Azcue BT-MB triple screw pump is ideal for the following applications:

Azcue Pump Selection Table

Aczue Pump Sectional Drawing

 Azue Pump Parts List

Azcue pumps have earned a strong reputation across the marine, industrial, and energy sectors, largely because the company has built its products around reliability, longevity, and engineering discipline. Their approach blends traditional craftsmanship with modern manufacturing control, resulting in pumps that consistently perform in demanding environments.

A Century of Spanish Manufacturing Excellence

Azcue’s heritage stretches back more than 100 years, and that experience is embedded in every pump they produce. Unlike many manufacturers who outsource critical components, Azcue uses materials from their own foundry, giving them full control over metallurgy, tolerances, and quality. This vertical integration ensures consistency, durability, and traceability—key factors for operators who cannot afford downtime.

⚓ Marine Type Approval Across All Major Classification Societies

Azcue pumps are marine type approved by all major classification societies, including Lloyd’s Register and ABS. This independent verification confirms that each pump meets stringent international standards for safety, performance, and reliability. For shipbuilders, fleet operators, and offshore installations, this approval provides confidence that the equipment will perform under real‑world maritime conditions.

🧩 Compact, Space‑Saving Engineering

One of the standout advantages of Azcue pumps is their compact footprint, especially when compared to equivalent‑performance gear pumps. This makes them ideal for vessels, engine rooms, and industrial installations where space is at a premium. The efficient layout allows engineers to integrate high‑capacity pumping solutions without compromising accessibility or serviceability.

🔧 Reliable Performance Under Fluctuating Conditions

Azcue pumps are designed to handle lubricating fluids under varying flow rates, pressures, and viscosities without losing efficiency. This stability is essential in applications such as fuel transfer, lube‑oil circulation, and marine fuel systems, where operating conditions can shift rapidly.

🔄 Interchangeable Spare Parts & Long‑Term Support

To simplify maintenance and reduce inventory costs, Azcue ensures that many spare parts are interchangeable across multiple pump models. This reduces the need for large stock holdings and streamlines procurement. Even more importantly, the company guarantees spare‑parts availability for at least 15 years after a model is discontinued, ensuring long‑term serviceability and protecting the operator’s investment.

🛡️ Built‑In Protection & Operational Flexibility

Azcue pumps incorporate several design features that enhance safety and adaptability:

• Integrated manually adjustable pressure relief valve for pump protection
• Tropicalized motors capable of continuous operation in ambient temperatures up to 45°C
• Reversible operation on request, enabling tank‑to‑tank transfer or discharge‑line emptying
• Magnetic coupling option, eliminating mechanical seal leakage and extending service life in critical applications
• ATEX‑approved versions for hazardous or explosive environments, ensuring compliance with strict safety regulations

These features make Azcue pumps suitable for a wide range of industries—from marine engineering and petrochemicals to power generation and heavy manufacturing.

⚙️ A Trusted Choice for Demanding Applications

With their combination of robust construction, long‑term parts support, compact design, and advanced safety options, Azcue pumps offer a compelling solution for operators who prioritize reliability and lifecycle value. Whether installed on a vessel, in an industrial plant, or in a hazardous environment, they deliver consistent performance backed by a century of engineering expertise.

Verified 2026 January