TANK ENTRY PROCEDURE AND APPARATUS

摘要

A tank accessing procedure is disclosed which allows for the replacement of a cover plate from a tank manway with an adapter having the capability of permitting access to the interior of the enclosure, without any appreciable spillage of the contents of the tank, even if the level of such tankcontents is above the height of the manway. In particular, the method comprises first inserting a blanking plate between the cover plate and the manway flange, which blanking plate is then secured to the manway flange. The cover plate is then removed leaving the blanking plate as the sole means of retaining the tank contents in place. The adapter is then secured to the manway flange and the blanking plate is removed thereby completing the accessing operation.