6722

MODEL BS-33-180. THE SHIPPING CASK IS A CYLINDRICAL STEEL WELDMENT WITH OVERALL DIMENSIONS OF 84 INCHES IN DIAMETER AND 97-1/4 INCHES IN LENGTH. THE EFFECTIVE CAVITY IS 76-1/2 INCHES IN DIAMETER BY 79-1/4 INCHES LONG. THE OUTER SHELL IS FABRICATED OF CONCENTRIC LAYERS CONSISTING OF THREE, ONE-INCH THICK AND 1/2-INCH THICK CARBON STEEL PLATES. THE INNER HALF-INCH THICK SHELL IS SEPARATED FROM THE ONE-INCH THICK SHELLS BY A 1/4-INCH THICK ASBESTOS SHEET. THE FLANGE IS THREE INCHES THICK,WITH 36 TAPPED HOLES AND A GROOVE TO ACCOMMODATE A SILICONE O-RING. THE TOP COVER IS SECURED TO THE FLANGE RING BY 36, ASTM-A-320, GRADE L7 1-1/2 INCH BOLTS. A 10-INCH DEEP STEEL IMPACT LIMITER IS MOUNTED TO THE TOP COVER TO ACT AS A SHOCK ABSORBER. THE CASK IS MOUNTED TO A TIE-DOWN FRAME BY SIXTEEN, 1-1/4-INCH HIGH STRENGTH STEEL BOLTS. OTHER CASK FEATURES INCLUDE A DRAIN LINE, ACCESS PORT TO THE INNER CONTAINER(S) AND A REINFORCING STEEL SHELL TO PROTECT THE CASK SEAL. THREADED ACCESS PLUGS ARE INSTALLED ON THE TOP OF THE LINER. A BOTTOM SIDE DRAIN IS ALSO PROVIDED. MAXIMUM GROSS WEIGHT IS APPROXIMATELY 51,100 POUNDS.