Double cap system for the handling and transfer of hazardous materials

Abstract

This invention pertains to a system of "Double cap for the handling and transfer of hazardous materials" between two vessels containing radioactive or toxic materials or pathogenic microorganisms. This system includes a particular metal-metal sealing embodied between the cap and flange of a first container or water-tight compartment, and the cap and flange of a second container, the latter being a 200-litre standardized barrel or container. This double cap system for the handling and transfer of hazardous materials comprises a first cap (4) of a first container subject to being coupled to a second cap (2) of a second container "a", made of metallic materials that are coupled to form a double cap wherein said caps have metallic flanges (1a)(1b)(3) for mutual coupling thereof. Metal-metal sealing contacts (20-20', 21-21', 22-22', 23-23'), are defined between the caps and the flanges, wherein the cap (4) of the first container preferably defines location for at least one first seal (5) and the flange of the second container defines location for at least one second seal (6).