Aircraft refueling systems

Aircraft refueling systems are the backbone of global aviation, silently ensuring that every flight, from commercial airliners to military jets, is fueled efficiently and safely. These complex networks of equipment, technologies, and protocols are designed to deliver fuel accurately, maintaining its quality, and preventing environmental hazards. 

With over 60 years of experience in the industry, ISOIL understands the paramount importance of robust and reliable petroleum product measurement, offering cutting-edge solutions that meet the most stringent demands of the aviation sector.

On this page we will explore:

• Key components of modern aviation fueling systems
• Benefits of advanced aircraft refueling solutions
• Safety protocols in aviation fueling operations
• Isoil's commitment to aircraft refueling excellence

The crucial role of aircraft refueling systems

Aircraft refueling systems are vital for the continuous operation of air travel and defense. They encompass the entire process from fuel storage to delivery into the aircraft. The systems must handle vast quantities of highly flammable jet fuel and aviation gasoline (Avgas) while adhering to strict environmental and safety regulations. 

The efficiency of these systems directly impacts turnaround times, operational costs, and, most importantly, the safety of flight operations. Professionals in aviation and military sectors, responsible for fuel operations, prioritize systems that guarantee uptime, precision, and regulatory compliance to avoid costly delays and potential incidents.

Key components of modern aviation fueling systems

Our solutions for aircraft refueling

PD meters 

For the measurement of jet fuel, ISOIL provides a specific range of PD meters. ISOIL PD meters are ideal for use both on refueling vehicles (refuellers and hydrant dispensers), and for small aircraft and helicopter refueling modules. 

Pulse emitter

ISOIL has developed a specific pulse emitter for the aviation industry. The pulse emitter converts the rotary motion of a PD meter into an electrical signal, enabling the interface with ISOIL (VEGA T2) electronic flow computers.

VEGA T2 electronic counter 

The electronic counter is the core of the measuring and automation system. Our ISOIL VEGA T2 performs metrological functions, interfaces with most instrumentation on board the vehicle, and makes relevant info available to the On Board Computer in the cabin. 

Large-digit EX display

The ISOIL LFD-6 display is ATEX certified and suitable for installation in classified areas. It is designed for use on aircraft refuellers and dispensers. When connected to ISOIL electronic counters (VEGA T2), up to 4 displays may be used to simultaneously display different quantities (volume, flow rate, etc.).

Ticket printer for the aviation sector

ISOIL provides a safe zone ticket printer, suitable to protect the counter from the voltage fluctuations that sometimes occur on aircraft refueling systems. The ST201 printer includes stainless steel support, power supply stabilization, filtering circuits, and screw connection terminals to make wiring easier.

Solution for in-line measurement of product density 

Our solutions for aircraft refueling are made to deliver an accurate volume and mass measurement during in-line operations. Density is acquired and displayed over Modbus RTU. Mass measurement can be performed in grams, kilograms, pounds, tons units

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6 benefits of advanced aircraft refueling solutions

Investing in advanced aircraft refueling systems offers a multitude of benefits, directly addressing the core needs and pain points of aviation professionals.

1. Enhanced operational efficiency

Modern systems reduce refueling times through faster flow rates and automated processes. This leads to quicker aircraft turnarounds, minimizing delays and maximizing aircraft utilization. The seamless integration of new technologies with existing infrastructure is a key benefit, reducing complexity.

2. Unparalleled accuracy in fuel measurement

High-precision measurement devices minimize fuel loss, prevent disputes, and ensure exact billing. This accuracy is crucial for economic management and regulatory compliance, directly combating the pain point of high costs associated with fuel losses.

3. Superior safety standards

Advanced systems incorporate multiple layers of safety features, from automatic shut-off mechanisms to sophisticated fire suppression systems. This significantly reduces the risk of incidents and ensures compliance with stringent safety regulations, a paramount concern for all operators.

4. Improved fuel quality assurance

Multi-stage filtration and real-time monitoring prevent contamination, guaranteeing that only clean, on-specification fuel enters the aircraft. This mitigates the risk of engine damage and ensures flight safety, addressing a critical pain point around fuel quality.

5. Reduced environmental impact

Modern designs often include features to minimize spills and emissions, contributing to a greener operational footprint and adherence to environmental regulations.

6 Calibration and certification

Regular calibration of flow meters and pressure gauges is non-negotiable for accurate fuel measurement. These calibrations must be performed by certified technicians using traceable standards to ensure compliance with metrology regulations. ISOIL's commitment to precision measurement makes this a core focus of their product lifecycle.

International standards and regulations for aircraft refueling

ISOIL is ATEX, PED and MID certified and our VEGA T2 electronic counter also complies with JIG Bulletin No. 130 dated 20/08/2020, Appendix 2, Para. EWS Warning Light, Check Level Actions, Alarm Level Actions.

ISOIL's commitment to aircraft refueling excellence

With over six decades of experience in the industry, ISOIL has become a trusted partner in petroleum product measurement, consistently meeting and exceeding the complex needs of aviation professionals. Our dedication to precision, reliability, and innovation makes us a leader in providing state-of-the-art aircraft refueling solutions.

For all aircraft refueling vehicles, ISOIL offers:

• high-precision flow meters (positive displacement and ultrasonic) for accurate measurement and fewer discrepancies
• electronic registers with real-time data, reporting, and easy integration with control systems
• robust filtration to keep fuel clean, on-spec, and free of contaminants
• monitoring and control systems to manage flow, pressure, and levels with precision
• durable, certified equipment built for aviation conditions and aligned with international standards

ISOIL delivers turnkey fuel management solutions—from design and consulting to installation, calibration, and ongoing support—built for long-term partnerships.

For aviation and defense fueling teams, we provide precise, reliable, fully compliant systems (including JIG and API alignment), backed by preventive maintenance and specialist training to reduce downtime, compliance risk, and unexpected costs.