Polished Performers Meet Critical Aseptic Control Demands

01.02.2007

Among the key design requirements for control valves used in aseptic applications, such as food processing, is a cavity-free body design without crevices or ‘traps’ to ensure that the potential for bacteria growth is eliminated, the ability for effective CIP and SIP (Clean or Sterilised In Place) and to be self-draining.

Polished Performers Meet Critical Aseptic Control Demands

SAMSON CONTROLS offer a range of valves incorporating these features which are manufactured to quality assurance systems certified to ISO 9001 and also meet stringent FDA requirements. For example, their type 3347 control valve has polished steel parts to ensure the highest purity for the process medium, special PTFE bushing along with an additional steam line connection that is used to meet very stringent purity requirements preventing bacteria from spreading at the actuator stem guide.

Another example is SAMSON’s Type 3249 valve which is equipped with an EPDM diaphragm and a back-up safety packing box to ensure total protection against bacteria spreading and prevent product leakage. These sealing systems, which constitute the main components of the valve construction, have been thoroughly developed and designed to ensure a long and reliable service life.

Finally, process applications which involve pasty, fibrous or highly viscous products are best controlled by SAMSON’s Type 3345 cavity-free valve body which features a diaphragm made of either rubber, nitrile, butyl or PTFE that acts both as a seal and a valve plug.

These valves can be easily installed into the process line because they are available with various connections including hygienic couplings, flanges and clamp connections according to ISO 2852 and welding.

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