1.
Date code
2.
Supplier code
Figure 2: Elastomer diaphragm front
1.
Valve size
2.
Grade of diaphragm
Figure 3: Elastomer diaphragm back
1.
Material code
2.
Date code
Figure 4: PTFE diaphragm
3.3 Valve diaphragm identification
Handwheel Operated Valves (903, 913, 963) Installation, Operation, and Maintenance Manual
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Содержание Engineered Valves 903
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