Paper/Article

The Butterfly Effect

Split butterfly valves offer effective containment solutions when transferring powders, particularly potent drug ingredients. Ben Wylie, sales & marketing executive for ChargePoint Technology, looks at key criteria for correct valve selection...
Cleanroom Technology, August 2008

Vacuum Integrity Testing of a ChargePoint Split Butterfly Valve

In a typical reactor or vessel charging application, the product being transferred would originate either from a hopper, container or a pre-stage process unit. In order to reach the
required vacuum state and inert atmosphere within the processing environment, an isolation / containment transfer valve is used. These isolation devises need to be suitably validated to verify their vacuum and leak rate capabilities.

The aim of the tests was to establish the sealing effectiveness of a ChargePoint split butterfly valve under vacuum conditions.
February 2010