| 摘要 |
PURPOSE: A coupling for a buried conduit having a waterproof function is provided to improve the air tightness of a sealing unit by increasing the contact area of the sealing unit touching a buried conduit. CONSTITUTION: A coupling for a conduit having a waterproof function comprises a connection body (110) and a cap nut (120). A soft sealing unit (10) is formed inside the cap nut. The soft sealing unit has air tightness to cut off water by touching the outer surface of a buried conduit (1) inserted into the cap nut. |
