In the cases where the tank truck does not have a meter, the unloaded volume is measured via a fixed measuring system.

ISOIL offers measuring systems that make it possible to perform accurate and safe operations, successfully solving issues connected to air removal in the final stages of tank emptying.

This process is also possible thanks to the implementation of specific solutions: special gas extractors for the lowest flow rates, or special centrifugal gas separators, fitted with level gauges which, thanks to the interaction with control valves and electronic counters, ensure the virtually total removal of air from the measured fluid.

Our solutions

ISOIL offers custom solutions also for special unloading cases:

  • Tank trucks or rail tankers not fitted with pump (gravity unloading)
  • Solutions for road service stations
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ISOIL depot solutions are the apex of our 60-year plus experience in the sector. From tank truck loading and unloading, from additive injection to adulteration for subsidised products, ISOIL is able to provide solutions ranging from the individual meter to complete and engineered skid solutions where all the components are already assembled and wired, resulting in a system ready for installation.

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Avio (1)

ISOIL provides aviation fuel measuring systems for the management and handling of fuels within airports for refueling aircraft on board refuellers and hydrant dispensers or fixed stations for refueling helicopters or small aircraft.


As regards depots, measuring and automation solutions are also available for tank truck loading and unloading. Thanks to our great attention to engineering and certified and "tailored-made" solutions, we have established ourselves as a leader in the refueling market.

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Marino_ anteprima

ISOIL has a presence in the marine sector with measuring systems for marine bunkering, blending of marine fuel oil (MFO), for the refuelling of barges and for meters on board tanker ships but also with marine refuellers for yachts and fishing boats.

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We follow the entire process at 360 °, even after installation we ensure all the assistance necessary to ensure efficiency and safety for our customers.

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Custom Tailor-Made

ISOIL stands out for its ability to customise products based on the Customers’ specific requests, even when they differ from standard.

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