Patent ID: 8707993

Claim:
A coaxial quick coupling comprising a male component and a female component wherein at least two coaxial paths are identified, one for a high pressure line and one for a low pressure line, wherein each of said male and female components comprises a component for channelling the low pressure flow and an axial, metal seal valve on the high pressure line kept in place by elastic means acting between said valve and said component, the valve, the component for channelling the low pressure flow and the elastic means on the high pressure line of the male component being identical to the corresponding elements, respectively to the valve, to the component for channelling the low pressure flow and to the elastic means on the high pressure line of the female component, and in that said female component further comprises a slider which, with the coupling disconnected, is kept in closed position against a front body placed outside said axial valve by a spring thus closing the low pressure line, and which is shifted by the male component against the spring when the coupling is connected, thus opening the low pressure line.