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Sterile Access Valve – Greatly Improved

Rattiinox-CAD-Divert

The sterile access valve is one concept that over the years has attempted to improve the functionality of bioprocess systems.  While many advancements have come from valve manufacturers it is obvious that more can and should be done.  One common application is the sterile access port valve combination where a purge valve is required.

Sterile Access Valve?
Sterile Access Valve?

As can be seen by the rendering above, the so-called Sterile Access Valve creates a significant dead leg in the hygienic piping system. The Rattiinox  CAD valve (Clean Aseptic Design) diverting valve addresses this application in a novel way that eliminates dead-legs and improves overall functionality.  The design of the radial diaphragm valve satisfies industry demands for improved cleanability and sterilization by eliminating dead-legs and unused portions.  The CAD Divert valve greatly improves cleaning and sterilization by removing asymptotic dead-legs which are inherent in all weir style membrane valves.  Also eliminated is the purge valve dead-leg that is equal to the unused portion formed by one half of the valve.

CAD divert valve
CAD divert valve

One of the goals of the Rattiinox CAD aseptic valve range is to bring superior performance  to system design, especially if stainless steel systems are to compete with single use systems.  Why settle for poor hygienic design when a better solution is now available?

The CAD Divert valve can be configured in many ways to best fit the process requirements.