How do you size a pressure gauge relative to process pressures, normal operating pressures, and maximum pressures in the process?
The pressure range of a gauge should be a minimum of 10% over the maximum working pressure in static conditions (no pressure fluctuations). In dynamic conditions, the gauge range should be a minimum of 40% over the maximum working pressure. Ideally, the pressure gauge range should be selected for a midscale reading during normal operating pressures.
