GEA Hilge HYGIA Determining the gap

The gap size of GEA Hilge HYGIA pumps need to be determined if transforming/replacing the impeller or the annular casing. The gap between the impeller and the annular casing contributes crucially to complying with the intended use.

2 versions are described:

• Version 1 – Conical spring mechanical seal with seal spacer

• Variant 2 - encapsulated (hygienic) mechanical seal