Dry pressure gauges containes no liquid, elastic element as a sensitive element to measure and indicate above ambient pressure, and are applied in almost all industrial processes and scientific fields. It can be found everywhere in the fields of thermal pipe network, oil and gas transmission, water supply and gas supply system, vehicle repair and maintenance plant and shop. Especially in the process of industrial process control and technical measurement, mechanical pressure gauges are more and more widely used due to the high mechanical strength and convenient production characteristics of the elastic sensing elements of mechanical pressure gauges.
