VERMAY GmbH & Co. KG, based in Pulheim, North Rhine-Westphalia, has taken the entrepreneurial decision to design and produce its own hygienic products in view of the importance of the hygienic design market. The goal is to have EHEDG certified after the planning and production of the newly developed products, mainly control and machine feet. EHEDG stands for European Hygienic Engineering and Design Group. The EHEDG Research Center Weihenstephan in Freising is the contact person for the future EHEDG certification of new VERMAY GmbH & Co. KG products based in Pulheim. The “Hygienic Design” department is a leader in the world market and is recognized for its “testing methods for testing the hygienic design characteristics of fittings and components”.

With the development of VERMAY positioning and machine feet for the area of ​​hygienic design the main goal is to prevent microbial contamination of foodstuffs already in the batch. The origin of such contaminations in food production are, for example, raw materials. However, the product can also be contaminated with microorganisms during processing or during the packaging process. Naturally, it is difficult, up to it is hardly possible, to free micro-organisms, which are not hygienically constructed, and thus to clean them hygienically. They survive and literally stuck everywhere; For example in columns, in inaccessible areas as well as in production residues. The objectives and purposes of the construction of apparatuses on the one hand can certainly collide with the functional necessities of hygienic requirements on the other hand. In this field of tension, a compromise must be found, in which the food safety is in no way questioned. Retrofitting existing machines is, as a matter of experience, costly and inefficient. It follows that any hygienic requirements should be taken into consideration as early as possible.

The associated benefits include
• high product safety
• Longer life of the machine or machine
• low maintenance
• lower production costs

Any demands on materials used in the manufacture of apparatus and machines for the food industry are high. They must be chemically inert, ie, unreactive, to cleaning and disinfecting agents. The Latin word inert means translated into German idle or uninvolved. Inert, in this particular sense, is non-toxic, mechanically stable and corrosion-resistant. The surface quality must not be impaired by the use. All materials which are not in contact with the product should be surface-smooth and easy to clean.

Stainless steels are the first material choice for the construction of process plants for the food industry. Alternatives are polymeric plastics. Their advantages over the stainless steel include better chemical resistance and significantly lower costs. However, the non-toxicity, that is, the non-toxicity of materials such as elastomers, such as adhesives, lubricants, and signal transfer fluids, is indispensable. The corrosion protection of stainless steels is quite pronounced. This is one of the reasons for their preferred use in the food and medicine sector. The choice of a variety of stainless steels is great. The choice of the respective stainless steel grade is determined by how corrosive, ie corrosive or destroying, the process with regard to the chemical ions involved, the pH value and the temperature of the cleaning or disinfecting agents used. Another criterion is the extent to which the stainless steel is permanently exposed.

The right selection of adhesives also helps to prevent microbial contamination of food and foodstuffs. Adhesives used should, without exception, correspond to the FDA regulations. FDA stands for the Food and Drug Administration, the “Food and Drug Administration”, as the US Food and Drug Administration, based in the state of Maryland. Adhesives used to seal gaskets should comply with the recommendations of the equipment manufacturers for which the respective seals are used. One and the other is indispensable.

The connections must all be glued together and in a mechanically perfect condition. The adhesive agent must never detach itself from the base material to which it is bonded at any time and in any situation.

Against this backdrop, there is still a lot to be done for the employees of VERMAY GmbH & Co. KG up to the EHEDG certification.


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