Crevice-free valves from AKO are available in various designs. They are the ideal solution for preventing deposits inside the valve and outside the direct product flow.
All valves from AKO are constructed in such a way that no components project into the direct product flow. In addition, no hollow spaces or undercuts exist in which the flowing material could collect. Especially in hygienically sensitive sectors like the food, pharmaceutical or chemical industry, this design prevents germs and bacterial from forming deposits in the undercuts and hollow spaces and growing in an uncontrolled manner. But even in branches of industry which materials that tend to encrust are transported, crevice-free valves are the ideal solution.
Crevice-free valves have special significance for interior sleeves since this component is an elemental part of the entire valve. It is decisive for the closing speed, closing density and constriction-free flow. In addition, it is in direct contact with the transported material across the entire valve width. For this reason, AKO Armatures absolutely values high-quality elastomer compounds that make the sleeve into one of the most reliable and safe components in the entire valve.
We produce the sleeves for crevice-free valves from various elastomers for different operating and transporting conditions. They always closed completely seal-tight and regulate or stop the transport of liquids and solids quickly and safely. In combination with an electropneumatic proportional valve, even a coarse metering or regulation of the product flow can be achieved. The high abrasion resistance of the sleeves guarantee long service lives, as well as their elastic properties, which are not lost even in case of a high number of opening and closing procedures. In this way, you profit from larger maintenance intervals, fewer interruptions of your operating sequences and therefore considerably lower operating costs.
The crevice-free valves from AKO consist of the three main components: the housing, the connection covers and the internal sleeve. These three components are available in a variety of materials:
In addition, the connection covers can be selected from the following options:
The European Hygienic Engineering and Design Group (EHEDG) is an organisation of companies of the food industry, public health institutions and research institutes. This organisation sets guidelines for components used in sensitive areas in the food, pharmaceutical and chemical industries.
The crevice-free valves from AKO Armatures are also available in hygienic combinations with EHEDG certification, which can therefore be used in the abovementioned areas without a problem. The crevice-free valves of the VMCE series were certified by EHEDG according to the requirements for types EL Class 1 and EL Aseptic Class 1 and are therefore:
The animation opposite shows the different cleaning and sterilisation procedures in a crevice-free valve.
AKO Armaturen has been specialised in the development, structural design and sale of crevice-free valves for over 30 years, now supplying customers all over the world. Valves from AKO are used in all kinds of industries and applications – this shows how the valves can be adapted to specific customer requirements in a needs-based manner. The advantages of the crevice-free valves from AKO include the following:
Crevice-free valves are used wherever media has to be transported having the characteristic of depositing in areas outside of the direct product flow. Examples for areas of application include the following:
If you would like to find out more about crevice-free valves and our flexible modular system, please contact us. Describe your requirements to our experts to obtain optimum solution suggestions for your applications. We are happy to help.
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