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GEA's hermetically sealed control valve extends shelf life of food and beverages

17 Sep 2018

GEA is expanding its D-tec® valve line with the new GEA D-tec® P/DV control valve for ultraclean applications in the food, beverage and dairy industries. This allows reliable control of process parameters such as volume flow, pressure, temperature and filling level of a vessel. Due to the hermetically sealing D-tec® stem diaphragm, the valve achieves a higher standard of hygiene. For example, it helps ensure product safety in beer mixes and soft drinks, fruit juices, milk-based and lactic acid-fermented products or even sauces, and contributes to a longer minimum product shelf life as is often demanded by the market

The P/DV type D-tec® control valve uses hermetically sealed D-tec® stem diaphragms

The P/DV type D-tec® control valve uses hermetically sealed D-tec® stem diaphragms

Longer shelf life, less preservatives

The P/DV type D-tec® control valve uses hermetically sealed D-tec® stem diaphragms. These provide improved contamination protection against the atmosphere and thus ensure microbial stability of the product throughout the entire process. While the D-tec® valve line can be used in aseptic processes, GEA sees the application of the new control valve primarily for ultraclean applications. The control valves are selected for products that require an extended shelf life, with or without cooling, depending on the pH value, cold chain and storage characteristics. These products include iced tea, fruit juice, fruit yoghurt and ESL milk. 

Pascal Bär, product manager for aseptic valves at GEA, adds: “Durability is important to the consumer, but not at any price. Today’s consumers are very sensitive to the topic of preservatives. Ultraclean processing is beneficial here because it helps to achieve the desired shelf life of a product with less preservatives. As part of a customized process chain, our new D-tec® P/DV valve control valve takes manufacturers this one step further.”

Special valve diaphragm connection increases pathogen barrier and service life

GEA is launching the P/DV D-tec® control valve for ultraclean applications in the food, beverage and dairy industries

GEA is launching the P/DV D-tec® control valve for ultraclean applications in the food, beverage and dairy industries

“The critical point between valve stem and stem diaphragm has an increased risk of pathogen introduction: Here, metal and plastic – two materials that react differently to temperature and pressure – come into contact. For this reason, we have designed a supporting ring that guides and counteracts the stem diaphragm during stroke movement. This approach is more effective than other options available on the market”, says Bär, explaining how the valve contributes to increased process and product safety.

In addition, this type of connection ensures that the membrane is subject to minimal mechanical stress during the switching process. With this approach, GEA has succeeded in making the stem diaphragm last longer as well as demonstrably keeping its temperature resistance and cleanability high. “Our main goal is to ensure system availability and economic viability for food and beverage producers. This is achieved by our new control valve, which combines functional flexibility and quality with manageable operating costs”, concludes Bär. Producers gain further operational safety through reliable leak detection. GEA's valve experts have designed the entire construction to be easy to maintain in order to reduce system downtime during maintenance. 

Modular construction enables process adaptation

The P/DV D-tec® control valve is part of the VARIVENT® modular principle, which is characterized by its variability for different requirements. This enables the valve to be configured according to the prevailing process conditions. It has an equal-percentage control cone characteristic and is available in the valve sizes DN40 up to DN100 and OD1.5” up to OD4”. Different KVS values are available for each valve size and different housing combinations can be implemented. The valve seat can be executed with a metallic stop as well as soft (V-Ring) and hard sealing – the latter with the new TEFASEP® gold material, which GEA recently introduced. In addition, D-tec® control valves are equipped by default with the proven GEA T.VIS® P-15 position controller.

Media Relations

GEA Group Aktiengesellschaft

Peter-Müller-Str. 12


40468

Düsseldorf


Germany

+49 211 9136-0

À propos de GEA

GEA est un des principaux fournisseurs de l'industrie agroalimentaire et d'autres industries, qui sont à l’origine d’un revenu consolidé qui a atteint près de 4,9 Mrd EUR en 2019.

C’est un groupe international spécialisé dans les machines et les installations, ainsi que dans les technologies de procédés et composants. GEA fournit des solutions énergétiques durables, utilisées dans des process de production de pointe pour divers marchés, et offre une gamme complète de services. Le groupe réalise près de 70 % de son revenu dans l'industrie alimentaire et des boissons, un secteur caractérisé par une croissance durable de long terme. Au 31 décembre 2018, la société employait plus de 18 500 personnes dans le monde. GEA est un leader du marché et des technologies dans ses secteurs d'activité. La société est cotée sur l'indice boursier allemand MDAX (G1A, WKN 660 200), sur l'indice STOXX® Europe 600 et sur des indices de durabilité globale MSCI sélectionnés.
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