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Forwards addl info confirming vent & purge valve closure capability.Data from encl Allis-Chalmers valve test program was used to analyze each vent/purge valve.No basis exists for blocking any vent/purge valve.

Accession Number: ML19344A600

Date Released: Thursday, October 24, 2024

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• ML19344A599 - Forwards addl info confirming vent & purge valve closure capability.Data from encl Allis-Chalmers valve test program was used to analyze each vent/purge valve.No basis exists for blocking any vent/purge valve. (2 page(s), 8/8/1980)
• ML19344A601 - "Test Rept on Allis-Chalmers 6-Inch Stream Seal Butterfly Valve in Air Concerning Nuclear Containment Isolation Valves." (150 page(s), 12/17/1979)