The stainless steel liquid filled capsule pressure gauge uses a capsule as its elastic element to measure gas micro-pressure and negative pressure. Filled with damping liquid (such as methyl silicone oil) and equipped with a buffer, it minimizes the effects of vibrations and pressure fluctuations, ensuring stability and reliability in harsh environments. Made from SUS304 or SUS316 stainless steel, it offers enhanced corrosion resistance and durability. This gauge is ideal for boiler ventilation, gas pipelines, and combustion devices, where it can accurately measure non-corrosive gases under vibrating conditions. Its robust design ensures long-term reliability in both standard and demanding applications.