letter combinations

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Table 84 provides the most common functional identifications.

We quote a few combinations that can be misleading :

FE = primary flow measurement element. E.g. diaphragm, venturi…

FO = flow limiter calibrated opening.

PCV = independent pressure controller. E.g. pressure relief valve.

PSV = independent safety mechanism on a pressure. E.g. safety valve.

PC = pressure controller.

PV = pressure control valve.

 letter combinations to define a function or an item of equipmentSecured image
Table 84. Examples of letter combinations used to define a function or an item of equipment

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