Patent ID: 8616524

Claim:
A female quick-connect coupling element for releasably joining together pipes for pressurized fluid comprising, a body having a fluid flow duct and a valve for controlling flow of fluid through the duct, the valve having a first piston and a second piston that are mounted to move in translation in opposing relationship and along a common axis relative to the body, the first piston being cooperatively engageable with a valve seat provided within the body of the female element so as to close the valve, the first and second pistons are interconnected by a mechanical link assembly, each of the first and second pistons defines one of two opposite and facing surfaces in contact with the fluid when the valve is open, and, due to forces exerted by the fluid on the first piston and the second piston, the mechanical link assembly is subjected to traction stresses when the valve is open, and the mechanical link assembly between the first and second pistons being disposed outside the fluid flow duct.