| 摘要 |
<p>A quick coupling includes a frame and a valve body which is arranged to be longitudinally displaceable in the frame. An inner sleeve is arranged in the frame to be displaceable relative to both the frame and the valve body. The valve body is centered in the frame with the aid of the bearing unit projecting inwards from the sleeve. The bearing unit is provided with one or more cavities or holes allowing working media to flow through. A rear seal is provided in a seat arranged behind the inner sleeve. A pressure eliminator is also provided behind the inner sleeve.</p> |
