| 摘要 |
<p>A breakaway coupling comprising a nipple and coupler normally engaged together by a canted coil spring. The coupler includes a coupler valve and the nipple includes a check valve. The canted coil spring is disposed in the coupler and receives the nipple as it enters the coupler. The nipple includes an inclined surface which enables the canted coil spring to be gradually compressed as the nipple enters the coupler. The canted coil spring simultaneously engages the shoulders and bottom surface of a recess in the coupler body and the first and second beveled surfaces and the bottom surface of a recess in the nipple adaptor. Vent structure is provided in the coupler and a bleed back vent is provided in the nipple.</p> |
