ISA S75.11 : 85(R1997)
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
INHERENT FLOW CHARACTERISTIC AND RANGEABILITY OF CONTROL VALVES
12-03-2013
01-12-2013
1 Scope
2 Basic definitions
2.1 Terminology
2.2 Flow coefficient
2.3 Inherent flow characteristic
2.4 Inherent rangeability
2.5 Relative flow coefficient (phi)
2.6 Relative travel (h)
3 Typical inherent flow characteristics
4 Permissible deviations between actual and
manufacturer-stated inherent flow characteristics
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