5805 (DOE)

MODEL CNS 3-55. THE PACKAGE IS A STEEL-ENCASED, LEAD-SHIELDED CASK WITH CRUSHABLE IMPACT LIMITERS. THE BASIC CASK IS A STEEL CYLINDER 133-3/4 INCHES LONG BY 50-1/2 INCHES IN DIAMETER WITH MAXIMUM CAVITY DIMENSIONS OF 36 INCHES IN DIAMETER BY 116 INCHES LONG REDUCED TO 111 INCHES BY THE SHIELD RING ATTACHED TO THE LID COVER. SHIELDING IS PROVIDED BY 6 INCHES OF CHEMICAL LEAD IN THE SIDES AND CLOSURE BASE PLATE AND 5-1/4 INCHES IN THE CLOSED END. THE OUTSIDE STEEL ENCASEMENT IS MADE UP OF TWO, 1/2-INCH PLATES ON THE SIDES AND THREE PLATES TOTALING 2-5/8INCHES ON THE END. THE CONTAINMENT VESSEL IS A 1/4-INCH THICK CYLINDER WITH A 1/2-INCH END PLATE. THE SHELLS ARE WELDED TOGETHER WITH THE LEAD SHIELDING POURED TO FILL THE ANNULAR AND END SPACES. THE REMOVABLE, FLANGED AND RECESSED BASE PLATE WELDMENT CONSISTS OF 3/8-INCH AND 1-1/4 INCH OUTSIDE PLATES AND A 5/8-INCH INSIDE PLATE. THE SPACE BETWEEN THE PLATES IS LEAD-FILLED. THE BASE PLATE IS SECURED TO THE CASK BODY BY MEANS OF TWELVE, 1-1/2-INCH HIGH STRENGTH BOLTS AND NUTS AND SEALED WITH TWO SILICONE O-RINGS. THE CAVITY IS PENETRATED BY A VENT LINE AT THE CLOSED END AND A DRAIN LINE THROUGH THE BASE PLATE. THE VENT LINE IS SEALED BY A GASKETED AND SHIELDED PLUG. THE DRAIN LINE IS SEALED WITH A 25 PSIG RELIEF VALVE. CASK APPENDAGES INCLUDE TWO, 8" LIFTING TRUNNIONS AND TWO, 4" REMOVABLE TILTING TRUNNIONS ON THE CASK SIDE. GROSS WEIGHT OF THE PACKAGE EXCLUDING THE SKID AND SUNSHADE IS APPROX. 70,000 LBS. *SEE CERT.