2.3 Valve diaphragm identification
Diaphragm tab codes
All diaphragm materials and physical properties are batch traceable via permanent codes molded into
the diaphragm tabs. The molding date, grade of diaphragm, and size provide traceability to original batch
records.
1.
Date code
2.
Supplier code
Figure 5: Elastomer diaphragm front
1.
Valve size
2.
Grade of diaphragm
Figure 6: Elastomer diaphragm back
1.
Material code
2.
Date code
Figure 7: PTFE diaphragm
2.3 Valve diaphragm identification
6
Advantage® 2.1 Actuator Maintenance Manual
