ML19254F329

Final Design Rept for Fort St Vrain Fuel Shipping Cask, Addendum 1,Revision D

ML19254F329
Person / Time
Site:	07106346
Issue date:	10/11/1979
From:	GENERAL ATOMICS (FORMERLY GA TECHNOLOGIES, INC./GENER
To:
Shared Package
ML19254F327	List: ML19254F326 ML19254F329
References
14385, GADR-55, NUDOCS 7911090057
Download: ML19254F329 (6)

Text

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4 GENERAL ATOMIC COMPANY P.O. Box 81608 San Diego, California 92138 t GADR-55 ADDENDUM i REVISION D FINAL DESIGN REPORT FOR FORT ST. VRAIN FUEL SHIPPING CASK ApproY bWh Robert L. Moore 130i 107 11 October 1979 ZG385

r e Instructions for incorporating Revision D to Addendum I to GADR-55: Remove drawings: GADR-55-2-1, GADR-55-2-2 and GADR-55-2-3 (all original issue) Insert drawings: GADR-55-2-1, Issue A GADR-55-2-2, Issue A GADR-55-2-3, Issue A Remove page 11-2, Revision C. Insert page 11-2, Revision D. 1301 208

s GADR-55 AuudNDUti i REVISION O SECTION II The shipping cask closure is sealed to the cask body with a stainless steel / dual concentric silicon elastomer seal design similar to that used on the spent fuel container lid. A single test port is routed from the top of the closure to the innerspace between the concen?- seals to allow for seal leak testing similar to that done on the c w tainer lid seal. D. IMPACT LIMITER An aluminum encased plywood impact limiter attaches to the top end of the cask and completely envelops the cask closure and container lid area. The impact limiter is designed to protect the cask closure area from both top end and side drops as well as drops through all intermediate angles. The limiter is made up of about 40 layers of 3/4 inch thick marine grade plywood and ie ancased in aluminum for weather protection and durability during handling. The impact limiter is clamped to the outer top end of the cask using a con-tinuous mounting ring which is held to the impact limiter with six 1/2-inch diameter fasteners. E. DRAWIf(GS General Atomic Company: GADR-55-2-1, Issue A; GADR-55-2-2, Issue A; GADR-55-2-3, Issue A. i301 209 II-2

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