主权项 |
1. A manway assembly comprising:
a. a nozzle defining a central opening and having a sidewall with a groove; b. a cover; c. a hinge pivotally attaching the cover to the nozzle so that said cover may be pivoted between an open position, where the central opening is generally uncovered, and a closed position, where the central opening is generally covered by the cover; d. a lift arm assembly mounted on a top of the nozzle, the lift arm assembly including a lift arm attached to the cover; and e. an outer cover pivotally attached to the nozzle and configured to pivot between an outer cover open position, where the central opening is generally uncovered, and, when the cover is in the closed position, an outer cover closed position, where the outer cover is positioned over the central opening and the cover. |