钳压式声测管端部的U形槽内装有O形橡胶密封圈，安装时将声测管的插口端，插入承插口端至标线位置，用专用的液压钳对U形槽一侧部位同时进行挤压。橡胶密封圈受挤压后起密封作用，钳压部位插口端和承插口端的管材同时收缩变形(剖面形成六角形状)起定位固定、抗拉拔、抗旋转的作用，从而有效地实现了声测管的连接。

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Acoustic detection of pipe end clamp pressure type u-shaped slot is equipped with an o-ring rubber seal, when installation will be the pin end of the tube, insert the socket end to marking position, with dedicated hydraulic clamp for extrusion u-shaped slot on one side of the part at the same time. Rubber seal squeezed the prominent sealing function, the clamp pressure parts of the socket end and socket pipes and contraction deformation (profile form a hexagonal shape) locating fixed, drawing resistance, resistance to the effect of rotation, effectively realized the sound tube connection.