Patent ID: 6814341
Filing Date: 2004-11-09
Classification: F16L,F17C

Abstract:
Quick connect coupling for removably joining two pipes through which pressurized gas passes, comprising, an upstream element including means for connection to an upstream, pressurized gas inlet pipe, and a downstream element of a size to be axially received within the upstream element to thereby open a valve mounted in a body of the upstream element, said valve being movable between a first open position in which the upstream and downstream elements are coupled, and a second closed position in which the upstream and downstream elements are disconnected, said upstream element being provided with at least one O-ring, made of elastomer or plastic material, arranged to seal about said valve when said valve is in said closed position, means for forming, both in said first open position and said second closed position of said, a primary sealing zone which extends upstream of said at least one O-ring, said primary sealing zone having dimensions adapted to reduce a flowrate of gas flowing in a direction toward said at least one O-ring, in order to thereby limit overheating of said at least one O-ring.