New EHEDG Guideline

EHEDG is pleased to announce the publication of yet another EHEDG Guideline that will help both manufacturers and users of equipment for food processing to implement hygienic design.

EHEDG Guidelines contain the easily accessible (and practically oriented) ‘rules of procedure’ for any processing plant to rely on right from choosing the right equipment to applying it correctly.

DOC 41: Hygienic Engineering of Diverter Valves in Process Lines for Dry Particulate Materials

Every process plant is equipped with valves, which fulfil numerous functions. These include line shut-off, opening, change-over and control of product flow, while also giving protection against both excessive or insufficient pressure and intermixing of incompatible media at intersection points in the process line. Diverter valves are applied either when dry particulate material (product) flow has to be diverted into several directions during processing, or when product flow from different lines converges into one line. Valve design and construction has a considerable influence on whether hygienic requirements for a production process are met and hence, the quality of the product itself. Hygienic design requirements established for valves handling liquids cannot be completely met for valves handling dry products. As any hygienic deficiency in the design of diverter valves handling dry products represents a possible risk, the food industry must ensure that only valves recognised as acceptable for use in hygienic dry product processing are used and that the recommended cleaning, maintenance and inspection procedures are followed.

This Guideline deals with the hygienic aspects of diverter valve design. This Guideline is available free of charge for EHEDG Company and Institute members (http://www.ehedg.org/index.php?nr=9&lang=en&guid=51) and can be ordered from our Webshop (http://www.world-of-engineering.eu/EHEDG/englisch/Doc-41-Hygienic-Engineering-of-Diverter-Valves-in-Process-Lines-for-Dry-Particulate-Materials::3254.html) by non-members.

Other EHEDG Guidelines

A list of all EHEDG Guidelines in numerous languages can be viewed on the EHEDG Website (http://www.ehedg.org/index.php?nr=9&lang=en). EHEDG Guidelines are drawn up by groups of international specialists from the engineering industry, the food and beverage industry, and universities and institutes.

www.ehedg.org