| 摘要 |
A coupling assembly includes a sleeve having an upper portion mounted in an opening in a floor or tank and a lower portion below the opening disposed around the outer surface of a conduit. An outer lock ring clamps the lower portion of the sleeve in a rigid position in the opening. The inner surface of the sleeve's lower portion is spaced laterally from the outer surface of the conduit to form an annular space between the sleeve and conduit for receiving a deformable gasket. Vertically spaced apart serrations are formed on the inner surface of the sleeve's lower portion, and an inner lock ring having an outwardly projecting shoulder is driven down into the annular space so it presses against the upper surface of the gasket to squeeze the gasket so it clamps and seals the lower portion of the sleeve to the outer surface of the conduit. The shoulder on the inner lock ring is engaged between a pair of the serrations to maintain the gasket clamped and sealed between the sleeve and conduit.
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