What limit exists for single-point pressure refueling in the Challenger 300/350?

The limit for single-point pressure refueling in the Challenger 300/350 is set at 55 psig. This specification ensures that the refueling process occurs safely and efficiently without exceeding the design tolerances of the aircraft's refueling system. Operating within this pressure limit helps to prevent potential damage to the systems involved in refueling, ensuring that the fuel is delivered correctly and that the integrity of the aircraft remains intact. Proper adherence to this pressure limit is crucial for maintaining safety standards and operational efficiency during refueling operations.