Provides Extra Margin of Protection from Vibration and Pulsation. 'MASS1 make Glycerine Filled Pressure Gauges are installed on Powerpacks, Hydraulic Machinery, Pumps, Compressors, Power Plants, Pipelines and Transmission Stations where Vibration & Pulsation are destructive factors. Glycerine filling makes the difference, the movement is submerged and constantly lubricated. The damaging effect of pulsation and vibration are minimised Pointer flutter is virtually eliminated because both the liquid filling and a restrictor screw in the Socket help in dampening pulsation.