Pressure gauge
An industrial mechanical pressure measurement instrument designed to provide real-time, visual local monitoring of fluid and gas pressures within pneumatic, hydraulic, and process automation pipelines. It operates via an internal C-shaped Bourdon tube or flexible diaphragm element that deflects proportionally under system pressure, driving a high-precision mechanical gear movement to translate the pressure-induced displacement into pointer rotation across a calibrated dial scale. Enclosed in a corrosion-resistant stainless steel or heavy-duty brass housing—often liquid-filled with glycerine or silicone to damp mechanical vibration and pressure pulsations—it provides accurate, power-free pressure indication while withstanding harsh factory environments and dynamic pressure surges.