Eaton’s Carter® product line of ground refueling equipment includes the 4th Edition of our Digital Pressure Control System, which employs a proprietary method of controlling and monitoring fuel pressure into the aircraft. The combination of Hydro-mechanical valves and a microprocessor eliminates the need for air-reference pressure, servo controls or venturis to control pressure. Fuel cannot cross contaminate the air system such as occurs in air operated systems.

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Eaton Carter Digital Pressure Control System