Liquid Filled Pressure Gauges Manufacturer in India: Liquid filled gauges are generally used for applications where vibration & pulsating media is a factor. Vibration leads to wear and tear of internal parts and causes the gauge to damage and an unsteady pointer reading. Glycerin or Silicon filling smoothens the movement of internal gears & parts and also reduces the fluterring of pointer to give a steady reading. These gauges are available with either brass internals or ss internals.