Transfer, Filtering
Measuring and Control

More than 50 years developing equipment for the transfer, filtering, measuring and control of fuels, AdBlue®, lubricants and other automotive fluids.

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Gear meters

Gespasa oval gear meters: absolute precision for technical and viscous fluids


The GESPASA gear meters have been developed for environments where accuracy and repeatability are decisive factors. Unlike disc meters, these models are designed to provide greater metering accuracy and can work with higher-viscosity fluids and higher pressures, as required in industrial lines, fleet management systems or lubricant distribution plants.

The range includes two variants: MGE models (external gear meters) and MGI models (internal gear meters). Both versions share a meticulous construction based on a volumetric calibrated gear system, which guarantees accurate metering, without pulsations, regardless of pressure or temperature variations in the fluid.

In the MGE line, we find models such as the MGE-110, MGE-250 and MGE-400, which stand out for their robustness and reliability in systems where the meter is installed as a visible unit or direct-reading unit. These external versions allow quick integration into transfer lines, industrial dispensers or maintenance stations, offering mechanical or digital readout with excellent resolution.

On the other hand, the MGI-100, MGI-250 and MGI-400 models are designed for use in closed or integrated systems, where the meter forms part of a technical module without the need for direct visualisation. Their compact design allows installation in restricted spaces, internal circuits or OEM structures, where hidden metering is required with high reliability.

GESPASA gear meters are manufactured with materials compatible with aggressive technical products, such as industrial oils, dense lubricants, additised diesel or hydraulic fluids. Their gears are hardened and precision-machined, which minimises friction and wear, maintaining accuracy even after thousands of operating cycles.

One of the key applications of this technology is automated consumption management, especially in contexts where any deviation can generate economic losses: service stations, corporate fleets, filling processes or automated production lines. The possibility of integrating these meters with electronic pulsers, digital displays or software such as DIESELPLUS makes it possible to monitor in real time the volume consumed, identify the user, record events or set limits per operation.

These meters can be easily connected to controllers such as the GK-7M PLUS, turning a simple installation into a complete fluid management system. The combination of mechanical accuracy with digital integration capability turns MGE and MGI meters into strategic tools for companies seeking efficiency, control and traceability.

GESPASA gear meters are a professional, reliable and technically advanced solution for those who need to ensure absolute precision in the metering of technical fluids.

MGE 110 gear meter

MGE 110: compact and precise metering for professional installations

The MGE-110 is an electronic volumetric meter made of aluminium and with a large display, featuring a high-accuracy oval gear mechanism. It is designed to meter diesel, lubricants or biodiesel flows with high accuracy and reliability.

Key technical features
• Flow range: 5 to 110 L/min for diesel, 5 to 80 L/min for lubricants
• Accuracy: ±0.5 %
• Aluminium body with tropicalised electronics for demanding use
• Maximum working pressure: 55 bar
• Temperature range: from –10 °C to +50 °C
• Compatible viscosity: 2 to 2,000 cSt
• LCD digital display with various digit configurations: 3 integers + 2 decimals, 4 integers + 1 decimal or 5 integers
• Long-life battery power supply (approx. 4 years depending on use)
• Non-volatile memory that preserves calibration parameters and totalisers even when changing the battery
• Connections: F 1" (BSP) thread or flange version
• Dimensions: 123 × 68 × 123 mm
• Net weight: 0.85 kg

Advantages and benefits
• High accuracy in the volumetric control of fuels and lubricants.
• Versatility for diesel, lubricating oils and biodiesel.
• Robustness thanks to the aluminium body and protected electronics.
• Clear readout with a configurable digital display.
• Continuous reliability: long-life battery and memory that prevents data loss.
• Compatibility with fluids of different viscosities and under high-pressure conditions.
• Version available with Viton joints for applications with biofuels (B100) or more demanding fluids.
• Also available in MGE/I-110 version, with pulse output for integration with control and management systems.

The MGE 110 gear meter is the entry-level model within the GESPASA external gear meter range, designed to provide accurate and repeatable metering of liquids such as fuels, light oils or technical lubricants in medium-flow applications. This meter stands out for its compact size, robust construction and compatibility with electronic management systems, which makes it a versatile solution for service stations, private tanks or technical maintenance equipment.

Based on a high-precision calibrated oval gear system, the MGE 110 uses the positive displacement principle to accurately register the fluid volume passing through it. This technology guarantees a stable readout, without pulsations, even when pressure conditions or product viscosity vary during transfer.

Its external structure is made from materials resistant to aggressive products, such as diesel, hydraulic oils or biofuels, ensuring a long service life even in industrial or logistics environments. Thanks to its modular design, it can be installed in line with pumps, dispensers or automated distribution systems, whether in fixed installations or mobile platforms.

This model is especially recommended for internal refuelling points, machinery refuelling, technical stations or lubrication systems, where a reliable solution is required without oversizing the metering system. Its operating flow rate is suitable for medium-duty applications, ensuring smooth operation without compromising accuracy.

Installation is quick and easy thanks to its compact body and standardised GESPASA connections. Maintenance is minimal, as its internal mechanism is sealed and protected against external contamination. Overall, the MGE 110 offers an ideal combination of size, accuracy and integration capability, providing an efficient solution for professionals seeking to control the consumption of technical fluids with maximum operational rigour.

MGE 250 gear meter

MGE 250: precise metering for industrial and supply applications

The MGE-250 is a 1 1/2” electronic volumetric oval gear meter manufactured by GESPASA, designed to meter diesel, lubricants and biodiesel flows with reliability in industrial or supply applications.

Key technical features
• Nominal flow rate for diesel: 10 to 250 L/min
• Nominal flow rate for lubricants: 10 to 150 L/min
• Accuracy: ±0.5 %
• Maximum working pressure: 45 bar
• Operating temperature range: –10 °C to +50 °C
• Measuring chamber body: aluminium
• Tropicalised electronics for demanding environments
• 5-digit digital display showing the volume of the last service
• Long-life button battery power supply, with low battery indicator
• Calibration parameters and stored totalisers in non-volatile memory
• Inlet/outlet connections: F1" thread or 1 1/2" flange, depending on the model
• Suitable for lubricants up to SAE-140 density
• Approximate dimensions and weights:
• F1" version: 183 × 107 × 140 mm | 2.3 kg
• 1 1/2" version: same case dimensions | 2.5 kg

Advantages and benefits
• Precise volumetric control for supply or internal management operations.
• The electronic display enables clear readout and reliable totalisation.
• High adaptability: handles both fuels and lubricants across wide viscosity ranges.
• Robust structure with an aluminium chamber and protected electronics against adverse environmental conditions.
• The non-volatile memory function ensures that data is not lost when changing the battery.
• Version with Viton joints (for more aggressive fluids) available for demanding environments.
• Suitable for fixed or mobile installations requiring precise volumetric metering.

The MGE 250 is a high-performance gear meter, designed by GESPASA to cover operational needs where constant accuracy is required in the metering of significant fluid volumes. It is especially suitable for industrial, logistics or energy environments where data reliability and compatibility with centralised control systems are priorities.

Thanks to its internal oval gear system, the MGE 250 provides a stable readout, without vibrations or pressure surges, adapting accurately to variations in product viscosity. It can work with diesel, hydraulic oil, dense lubricants or biofuels, always maintaining high accuracy even in continuous transfer cycles.

This model has been developed for visible and direct use within fixed or mobile installations. It integrates easily into professional dispensers, technical stations, logistics platforms or automatic loading systems, where it enables precise control of the transferred volume. Its robustness makes it a reliable component for repetitive duty cycles.

One of its distinctive features is its full compatibility with digital pulsers, which facilitates integration. Its robust design and its ability to withstand high pressures make it ideal for companies working with large volumes and unable to tolerate metering errors. Installation is quick, and maintenance is almost non-existent.

MGE 400 gear meter

Digital precision for high fuel and lubricant flow rates

The MGE-400 is a 2” electronic volumetric meter, with oval gears, manufactured in high-quality aluminium, designed to meter fluids such as diesel, lubricants or biodiesel with reliability in medium-to-high-range applications.

Key technical features
• Flow range: 15 to 400 L/min for diesel; 15 to 300 L/min for lubricants
• Accuracy: ±0.5 %
• Maximum working pressure: 45 bar
• Operating temperature range: –10 °C to +50 °C
• Inlet/outlet connections: 2″ BSP flange
• Power supply: long-life button battery with low battery indicator
• Non-volatile memory: preserves calibration parameters and totalisers even when changing the battery
• Dimensions: 183 × 152 × 140 mm
• Approximate weight: 4.3 kg
• Available in a version with Viton joints for B100 biofuels or more aggressive fluids

Main advantages and benefits
• High flow capacity: ideal for installations where it is necessary to meter large volumes in a fast and reliable manner.
• Consistently high accuracy (±0.5 %) even with pressure, temperature or viscosity changes.
• Robust construction: aluminium body and protected electronics for demanding environments.
• Clear digital readout: easy-to-read display with permanent memory and low battery warning.
• Versatility of use: suitable for fuels, oils and biodiesel, with the option of Viton joints for more demanding applications.
• Flexible installation thanks to the flange connections and its compact and robust design.

With robust engineering and a gear system sized to withstand high circulation volumes, the MGE 400 enables consistent metering without deviations or the need for frequent recalibration. This makes it an ideal unit for production plants, port facilities, petrochemical industries or centralised supply systems.

Its metal body, highly resistant to high pressures, guarantees durability and reliability even in aggressive conditions. Like other models in the range, it can incorporate electronic pulsers to send real-time data to external monitoring systems.

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