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Liquid-filled pressure gauges are used to damp vibrations and pulsations and minimize their effect on the gauge dial pointer. They are used primarily in dynamic and rugged applications where sudden shocks or pressure spikes might occur. They help to ensure the gauge maintains accurate readings for its rated lifecycle. This longer lifecycle means longer-term cost savings, as gauges do not fail and need to be replaced as often. Because they are already filled with fluid and sealed, liquid-filled gauges are not impacted by condensation, thus cannot be obscured by moisture and ambient air ingress, as can happen with dry gauges. Most liquid-filled gauges use glycerin to damp the pulsations, though in more extreme environments, silicone or mineral oil may be used to withstand temperature extremes. This liquid also serves to protect the internal components of the gauge, preventing friction and wear by adding a layer of lubrication. This in turn reduces corrosion by serving as a barrier to other contaminants that mat come in contact with the gauge Selection of the appropriate fluid for a liquid-filled gauge is crucial for ensuring good performance and a long life. Nat-Stuk has several options to choose from, and your decision should be based on the temperature range and media in which the gauge will be working Most Common Types of Liquid-Filled Gauges Glycerin: Glycerin-filled gauges are a good value and provide good vibration dampening for most of the industrial applications. These gauges work well in temperatures between -20°C and +60°C (-4°F and +140°F) Silicone: Silicone-filled gauges are better for applications with extreme temperature variations, especially in colder climates and when icing may be expected. Their working temperature range extends from -40°C to +60°C  (-40°F to +140°F). Halocarbon: Halocarbon-filled gauges are better for applications that involve oxidizing agents such as chlorine, oxygen and hydrogen peroxide. They work well from -20°C and +60°C  (-4°F to +140°F). Follow us on Twitter and Instagram We invite you to check out our Blog Nat-Stuk is a manufacturer of high quality pressure gauges, thermometers, thermowells, diaphragm seals, valves, pressure transmitters and accessories for a multitude of industrial applications. WE LISTEN TO YOUR NEEDS AND MAKE IT SIMPLE  For more information about our products, please contact our sales team at: contact@natstuk.com