| 摘要 |
<p>A coupling for fluid lines in which both coupling halves seal in response to pulling apart of the lines. Separation of the coupling halves occurs suddenly rather than gradually upon the attainment of a predetermined separating force. Coupling is accomplished without force being needed by inserting the nipple half into the manifold half and rotating a union ring. An interlock prevents rotation of the ring if pressure is excessive. A high pressure relief valve on the nipple half prevents damage due to surge pressures. The coupling is especially useful in marine petroleum transfer applications.</p> |
