The Effects of Vibrations and Pulsation on Pressure Gauges

Vibration can be a reason for a gauge not to operate successfully, and high frequency vibration can be more severe on internal components than low frequency vibration. When vibration occurs it causes erratic movement of the quadrant, pinion and link which causes these components to wear out in a short space of time. In this situation, glycerine filled gauge will extend its life. Or, if possible, mount the gauge off the vibrating machinery.

Pulsation will normally occur when gauges are used in close proximity of a pump and will cause eratic expansion and contraction of the bourdon tube and the junction movement of the pointer. In this instance the quadrant, pinion and link components will wear out in a short space of time.