Access valve devices, their use in separation apparatus, and...

Details Access valve devices, their use in separation apparatus, and... Access valve devices, their use in separation apparatus, and...

B - Operations, Transporting

01

D

B01D 15/08 (2006.01)

Patent

CA 2305039

The chromatography apparatus comprises a column housing with a housing wall defining an enclosed bed space which in use contains a bed of packing material, and an access valve installed in the housing wall through which such packing material is packed into the bed space, said access valve controlling first and second fluid flow conduits which communicate into the bed space through it, said conduits having respective exterior connections outside the column housing and respective interior openings which open into the bed space in an open condition of the access valve. The valve is adjustable to a closed condition in which it isolates both the first and second conduits from the bed space but puts the first and second conduits into fluid communication with one another creating a continuous cleaning path isolated from the bed space.

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