What impact does the operating pressure of the medium being measured have on instrument selection?
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On the instrument data sheet, the operating pressure of the medium being measured is often indicated. What specific impact does this value have on the selection of instruments? ?
The operating pressure of the instrument should be higher than the operating pressure of the medium. It relates to the material chosen for the instrument and the way in which the instrument is connected to the pipelines; when high pressures are involved, welding or double flanges are generally considered. . If the pressure is low, flange or pipe-type connections can be considered.
Operating pressure is of great significance for flow rate calculation and control valve calculation, especially for gases and steam, whose density changes with pressure.