Fluid transfer, Filtration
Measurement and Control

More than 50 years developing equipment for fluid transfer, filtration, measurement and control of fuels, AdBlue®, lubricants and other automotive fluids.

Gear meters

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


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

The range includes two variants: MGE models (external gear meters) and MGI models (with internal gears). Both versions share a meticulous build based on a positive displacement system with calibrated gears, ensuring accurate, pulse-free measurement regardless of pressure or temperature variations in the fluid.

In the MGE line, you will 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 for direct reading. These external versions enable fast integration into transfer lines, industrial dispensers or maintenance stations, providing 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 is part of a technical module without the need for direct visualisation. Their compact design allows installation in tight spaces, internal circuits or OEM structures, where concealed but highly reliable measurement is required.

GESPASA gear meters are manufactured with materials compatible with aggressive technical products, such as industrial oils, heavy lubricants, additised diesel fuels or hydraulic fluids. Their gears are hardened and precision-machined, which minimises friction and wear, maintaining accuracy even after thousands of duty 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 ability to integrate these meters with electronic pulse transmitters, digital displays or software such as DIESELPLUS makes it possible to monitor the consumed volume in real time, identify the user, record events or set limits per transaction.

These meters can easily be 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 makes MGE and MGI meters 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 accuracy in technical fluid measurement.

MGE 110 gear meter

MGE 110: compact, accurate measurement for professional installations

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

Key technical features
Flow range: 5 to 110 L/min for diesel fuel, 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: –10 °C to +50 °C
Compatible viscosity: 2 to 2,000 cSt
LCD digital display with multiple digit configurations: 3 integers + 2 decimals, 4 integers + 1 decimal, or 5 integers
Battery powered with long service life (approx. 4 years depending on use)
Non-volatile memory that retains calibration parameters and totalisers even when changing the battery
Connections: H 1" (BSP) thread or flanged version
Dimensions: 123 × 68 × 123 mm
Net weight: 0.85 kg

Advantages and benefits
High accuracy in volumetric control of fuels and lubricants.
Versatility for diesel fuel, 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 in high-pressure conditions.
• Viton seal version available for applications with biofuels (B100) or more demanding fluids.
• Also available as MGE/I-110, with pulse output for integration with control and management systems.

The MGE 110 gear meter is the entry-level model within GESPASA’s external gear meter line, designed to provide accurate and repeatable measurement 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, making 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 record the fluid volume passing through it with accuracy. This technology guarantees a stable, pulse-free reading, even when pressure conditions or product viscosity vary during transfer.

Its external structure is made from materials resistant to aggressive products, such as diesel fuels, 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, either in fixed installations or mobile platforms.

This model is especially recommended for internal loading points, refuelling machinery, 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 flow without compromising accuracy.

Installation is quick and straightforward 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 delivers an ideal combination of size, accuracy and integration capability, providing an efficient solution for professionals who need to control technical fluid consumption with the highest operational rigour.

MGE 250 gear meter

MGE 250: accurate measurement for industrial and supply applications

The MGE-250 is a 1½” positive displacement meter, an electronic oval gear meter manufactured by GESPASA, designed to reliably measure flows of diesel fuel, lubricants and biodiesel in industrial or supply applications.

Key technical features
Nominal flow rate for diesel fuel: 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
Digital display (display) with 5 digits showing the volume of the last delivery
Coin-cell power supply with long service life, with low-battery indicator
Calibration parameters and totalisers stored in non-volatile memory
Inlet/outlet connections: H1" thread or 1½" flange, depending on model
Compatible with lubricants up to SAE-140 grade density
Approx. dimensions and weights:
H1" version: 183 × 107 × 140 mm | 2.3 kg
1½" version: same case dimensions | 2.5 kg

Advantages and benefits
Accurate volumetric control for supply or internal management operations.
• The electronic display enables clear reading and reliable totalisation.
High adaptability: supports both fuels and lubricants across wide viscosity ranges.
Robust structure with an aluminium chamber and protected electronics for adverse environmental conditions.
Non-volatile memory functionality ensures data is not lost when the battery is replaced.
• Version with Viton seals (for more aggressive fluids) available for demanding environments.
• Suitable for fixed or mobile installations requiring accurate volumetric measurement.

The MGE 250 is a high-performance gear meter, designed by GESPASA to meet operational needs where consistent accuracy is required in measuring significant volumes of fluids. 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 reading, without vibration or pressure spikes, adapting accurately to changes in viscosity of the product. It can work with diesel fuel, hydraulic oil, heavy lubricants or biofuels, maintaining high accuracy even during continuous transfer cycles.

This model has been developed for visible, direct use in fixed or mobile installations. It integrates easily into professional dispensers, technical stations, logistics platforms or automatic loading systems, enabling accurate control of transferred volume. Its robustness makes it a reliable component for repetitive work cycles.

One of its distinctive features is its full compatibility with digital pulse transmitters, which facilitates integration. Its durable design and ability to withstand high pressures make it ideal for companies handling large volumes that cannot afford metering errors. Installation is quick, and maintenance is almost non-existent.

MGE 400 gear meter

Digital accuracy for high flow rates of fuels and lubricants

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

Key technical features
Flow range: 15 to 400 L/min for diesel fuel; 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 coin-cell battery with low-battery indicator
Non-volatile memory: retains calibration parameters and totalisers even when changing the battery
Dimensions: 183 × 152 × 140 mm
Approx. weight: 4.3 kg
• Available with Viton seals for B100 biodiesel or more aggressive fluids

Main advantages and benefits
High flow capacity: ideal for installations where large volumes must be measured quickly and reliably.
Consistent high accuracy (±0.5%) even with changes in pressure, temperature or viscosity.
Robust construction: aluminium body and protected electronics for demanding environments.
Clear digital readout: easy-to-read display with permanent memory and low-battery warning.
Versatile use: suitable for fuels, oils and biodiesel, with an optional Viton seal version for more demanding applications.
Flexible installation thanks to flanged connections and its compact, rugged design.

With robust engineering and a gear system sized to withstand high circulation volumes, the MGE 400 enables consistent measurement with no deviation and no need for frequent recalibration. This makes it an ideal piece of equipment for production plants, port facilities, petrochemical industries or centralised refuelling systems.

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

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Certifications and standards

ATEX

Equipment for
explosive atmospheres

ISO 9001

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management system

CE marking

Conformity with
European standards