| 摘要 |
<p>Improved breakaway coupling 10, 10B includes an upstream housing 24, 24B and a downstream housing 26, 26B. A poppet 40, 40A, 40B, 40C is positioned within each respective upstream and downstream housing, and is biased by a spring 44, 44A, 44B, 44C for sealing engagement with a seating surface fixed to the respective housing. A push rod 58 maintains the upstream housing 40, 40B open when the coupling is mated. A spiral ring 72, 72B fits within a groove in both the upstream housing and the downstream housing when the coupling is mated, and is radially modified by sliding up a respective ramp surface 86, 86B when an axial pull is exerted on one of the flow lines connected to the coupling. The coupling may be easily reconnected by pressing the male housing into the female housing while the spiral ring is maintained in the groove in the female housing.</p> |
