Innovative diaphragm valve bodies thanks to modern hydroforming technology

BÜRKERT FLUID CONTROL SYSTEMS
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At ACHMEA 2015 Bürkert Fluid Control Systems presented a completely new body type for diaphragm valves that is particularly aimed at applications in hygienic environments. The bodies, manufactured through the use of a patented manufacturing procedure, so-called hydroforming technology, satisfy the highest requirements imposed on materials and cleanability. With a lightweight, sustainable, and hygienic design the tube valve bodies are unique and compensate the weaknesses of forged and cast valve bodies.

With the introduction of the new tube valve body, Bürkert completes its product line in the diaphragm valve area and presents a high-performance alternative to forged and cast valve bodies. With cleanability certified in accordance with EHEDG, high stability, ideal surface quality, and the use of 316L stainless steel, the tube valve bodies manufactured with hydroforming technology are no less exciting than the versions already known on the market. On the contrary: The great benefit of the new housings is that they are manufactured from high-quality stainless steel tube, like the other plant or system lines. This enables hygienic tube-to-tube welding of virtually identical materials, through which a uniformly high quality of weld seams is ensured.

Through the processing of high-quality tubes in combination with hydroforming technology, it is possible to manufacture variants that are as much as 75% lighter than forged housings, which goes hand in hand with a great customer benefit. For example, through the reduced material used, the energy requirement and the heat-up or cooling phase duration of the plants are reduced during the cleaning or sterilisation processes. Thus energy costs are lowered and downtimes are reduced. Moreover, the same housings enable optimised temperature control, easier process validation, shorter response times, as well as reduced installation costs, because supports are eliminated. In addition, the lightweight design of the housing has a positive effect from the ecological perspective. Thanks to the low mass, users profit from energy-savings by which the CO2 footprint is reduced in operation. The manufacturing process is also designed to be more environmentally-friendly. When manufacturing a DN 25 cast valve body, almost 7,000 grams of CO2 are released; the value for the new Bürkert tube valve body is just over 2,000 grams.

Innovative diaphragm valve bodies thanks to modern hydroforming technology

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