Item
Description
2
Compound
3
Size
4
Vendor
5
Date Code (month and year)
1
2
3
4
Figure 14: EnviZion PTFE Diaphragm
Figure 15: BioviZion PTFE Diaphragm
Item
Description
1
Vendor
2
Month
3
Material
4
Year
EHEDG certified applications
For EHEDG certified valves, certain hygienic clamp connections, as well as gaskets for these connec-
tions, have been evaluated and accepted for cleanability by EHEDG. These are listed in a position paper,
available from EHEDG at
https://www.ehedg.org/guidelines/free-documents/
. Only valves with these con-
nections and gaskets are considered cleanable according to EHEDG standards.
3.3 Valve diaphragm identification
10
EnviZion and BioviZion Valves Installation, Operation, and Maintenance Manual