Food processing technology supplier GEA has developed a D-tec D/DV double chamber valve to help manufacturers of beverages and dairy products to achieve their desired shelf-life with fewer preservatives.
Completing GEA’s Ultra Clean valve range, the double seat valve has been designed with a sterile leakage chamber that is hermetically sealed from the atmosphere by two side valves.
The sealing properties of the new valve stem diaphragm raise hygiene standards to meet the Ultra Clean level, which increases the shelf-life of soft drinks, fruit juices and milk-based and lactic acid-fermented products.
“Equipping the interfaces in process plants with as few valve types as possible is often a decisive criterion to our customers. Spare parts handling and warehousing become increasingly complex when different valve types must work together,” said Pascal Bär, product manager for GEA Aseptic Valve Technology.
With the addition of its D-tec double chamber valve, GEA now offers aseptic valves for both hygiene classes “Aseptic” and “UltraClean”, which are tailored to the special conditions of the respective applications.
“Aseptomag, our metal bellows technology, is the benchmark in hygienic processing, which we use for highly sensitive products such as baby food and UHT milk as they demand an uncompromising aseptic execution of processes and components,” Bär explained.
“However, a wide range of beverages produced by our customers are not promoted under aseptic conditions. In fact, they fall into the second highest hygiene level according to the VDMA (Mechanical Engineering Industry Association) guidelines, which is hygiene class IV ‘UltraClean’. That is why our new D-tec D/DV is meeting the process requirements of this hygiene class.”
D-tec is suitable for iced tea, fruit juice, fruit yogurt and ESL milk and products that require an increased shelf life depending on the pH value, cold chain and storage conditions.