A bourdon pressure gauge is one of the most widely used mechanical pressure-measuring instruments in industrial and commercial applications. It operates using a curved, hollow metal tube (bourdon tube) that straightens when pressure is applied. This mechanical movement is transmitted through a linkage and gear mechanism to a pointer, providing a direct and reliable pressure indication on the dial.

Bourdon pressure gauges are valued for their simplicity, durability, and wide pressure range capability, from low to very high pressures. They are available in various materials such as brass, phosphor bronze, and stainless steel to suit different media, including air, water, oils, gases, and process fluids. Depending on the application, they may be supplied in dry or liquid-filled versions to improve performance in vibrating or pulsating environments. Bourdon pressure gauges are extensively used in industries such as manufacturing, oil and gas, power generation, HVAC, hydraulics, and general process monitoring.