Disconnectable fluid coupling

A method comprising:

• retaining a feather, by a trigger, in an open position, the open position allowing fluid flow through a fluid passage defined by a first tubular and a second tubular, the first tubular axially coupled to the second tubular, the first tubular is aligned with the second tubular, the feather positioned within the first tubular, the first tubular and the second tubular being separable under a pre-determined tensile load;
• releasing the first tubular from the second tubular in response to an applied tensile load exceeding the pre-determined tensile load;
• activating the trigger in response to the release of the first tubular from the second tubular;
• translating the feather, by a loaded spring, towards a closed position;
• guiding, by a guide, the feather from the open position to the closed position, the guide having a thin profile attached to an inner surface of the first tubular, the thin profile of the guides matched to a groove in an inner surface of the feather;
• and
• blocking the fluid passage, by the feather translating to the closed position.

A fluid transfer system comprising:

• a first reservoir configured to retain a fluid;
• a second reservoir configured to receive the retained fluid;
• and
• a fluid coupling defining at least a part of a fluid passage between the first reservoir and second reservoir, the fluid coupling comprising:
• a first tubular axially coupled to a second tubular, the first tubular is aligned with the second tubular to define the fluid passage;
• a feather positioned within the first tubular, the feather configured to axially translate towards the second tubular and pivot towards a center of the first tubular, wherein the feather is biased to be in a closed position;
• and
• a trigger attached to the feather, the trigger positioned between the first tubular and the second tubular, the trigger configured to retain the feather in an open position when the first tubular and second tubular are coupled.