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Which specification, API or HG, contains information regarding the Cv value of control valves?

2015-08-31View Original

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1. Which specification, API or HG, contains information regarding the Cv of control valves? 2. Which standard specifies the method for calculating the Cv of steam and water?
Reply #22015-08-31
Do you want to know how to calculate Cv, or are you looking for Cv values for different types of valves? For the latter, it’s necessary to check the product specifications of certain manufacturers, such as FISHER
Reply #32015-08-31
How to calculate it: during the preliminary design, a Cv value needs to be calculated, and then a suitable option can be selected
Reply #42015-08-31
The API does not have any specifications regarding Cv; internationally, the standards commonly followed are ISA 75.XX and IEC 534.XX

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Translated at 2026-07-21 01:47:32

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