Doc. 40 Hygienic Engineering of Valves in Process Lines for Dry Particulate Materials
First Edition, October 2010 - This Guideline describes in detail the hygienic requirements of butterfly valves, slide gate valves and ball segment valves. It also briefly mentions pinch-off valves, ball and plug valves as well as cone valves. The hygienic design requirements of rotary and diverter valves are subject of separate EHEDG Documents (Doc. 38 and 41).
Dry Materials Handling
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DOCs in progress
Doc. 26 - Hygienic engineering of plants for the processing of dry particulate materials (2003).
NOTE: Document was withdrawn in March 2016. Doc. 26 has been integrated into Doc. 44.