GEMÜ 567 BioStar

The requirements for aseptic/hygienic and operational safety in the pharmaceutical, biotechnology, foodstuff and beverage industries are becoming ever stricter as a result of increasing legal requirements such as the FDA Regulation (EC) No. 1935/2004 or Hazard Analysis and Critical Control Point (HACCP). In order to further improve the quality and purity of our own foodstuffs and medicines, all processes in the food and pharmaceutical industries need to be controlled more effectively, as the purity and hygiene of the processes involved will be subject to stricter requirements.

GEMÜ developed the PD (plug diaphragm) design as a way of meeting the legislator’s requirements and increased customer demands. The design combines the advantages of proven diaphragm valve technology, which has always guaranteed hermetic separation of fluid from the operator, with excellent fluid control characteristics. With the PD design, a PTFE diaphragm has been developed that achieves the controllability of a globe valve and also fulfils the strictest purity requirements.

For the GEMÜ 567 BioStar Aseptic Control Valve, a new solution was therefore adopted to achieve hermetic separation of the medium from the actuator, whilst simultaneously achieving excellent valve control characteristics. The basis for this was the GEMÜ PD design. With this innovative sealing, the GEMÜ 567 BioStar allows small volume to be regulated extremely accurately under aseptic conditions from 80 l/h to 12,500 l/h.

Plant operators and plant designers can use this control valve to implement typical applications, such as dosing of gaseous and liquid media. The valve allows a very wide range of aseptic applications to be handled both generally or for filling processes, such as high-precision dosing and control of trace elements, additives, growth substances, flavourings or colourings, preparation of biocultures, pressure control for WFI systems, aseptic tanks and fermenters, conditioning solutions, pressure and flow controls. It can also be used in the manufacture of beverages, e.g. for the carbonation of beer, soft drinks and mineral water, as well as in the production of foodstuffs, such as in UHT systems, analyzers, inline mixing systems and high-gravity installations.

In summary, the GEMÜ 567 BioStar benefits include:

• Hermetic separation of the actuator from the medium flow
• Innovative sealing via GEMÜ PD (plug diaphragm) design
• Diaphragm made of a PTFE second-generation material (TFM^TM)
• Proven and reliable actuator design (GEMÜ 650 BioStar)
• Linear and equal-percentage control characteristic options
• Adaptable regulating cone geometry
• Suitable for CIP/SIP and auto-clave capable
• High-grade surface finish (up to 0.25 µm)
• No gland seal contamination
• Can be integrated into GEMÜ multi-port valve blocks (M-Blocks).

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