Bürkert diaphragm valve bodies

Bürkert Fluid Control Systems has introduced an innovative body type for diaphragm valves for hygienic applications. The bodies, manufactured with hydroforming technology, have a lightweight, sustainable and hygienic design which offers a high-performance alternative to forged and cast valve bodies.

The tube valve bodies are manufactured from 316L stainless steel, enabling hygienic tube-to-tube welding of virtually identical materials and a uniformly high quality of weld seam. Compared with cast bodies, neither cavities nor other defects occur in the manufacturing process, which means the risk of contamination is significantly minimised.

The tubes are as much as 75% lighter than forged housings, reducing the energy requirement and the heat-up or cooling phase duration of the plants during cleaning or sterilisation processes. This, in turn, lowers energy costs and reduces downtimes.

The housings enable optimised temperature control, easier process validation, shorter response times and reduced installation costs because supports are eliminated.

The manufacturing process is also designed to be more environmentally friendly, releasing just over 2000 g of CO₂ compared with almost 7000 g for a DN 25 cast valve body.

The tube valve bodies fulfil the globally established ASME-PBE standard regarding dimensions and tolerances, as well as the EHEDG requirements regarding hygienic design. They are available in welding connection sizes ½, ¾, 1, 1½ and 2″ with the Bürkert diaphragm valve types 2031 and 3233.