Overview: The stainless steel bellows pressure gauge is a corrosion-resistant micro pressure measuring instrument developed based on the structural principle of ordinary bellows pressure gauges. The casing of the pressure guiding system is made of stainless steel material. Applied to the measurement of micro pressure and negative pressure of various gas media in processes with high corrosion resistance requirements; It can also be used for boiler ventilation, gas pipelines, combustion devices, and other similar equipment. It is an ideal supporting product for the localization of similar instruments in the introduction of advanced foreign technology and equipment. Structural principle: The instrument consists of a measurement system (including joints, membrane boxes, etc.), a transmission mechanism, an indicator device, and a housing. The pressure guiding system and housing are made of stainless steel material and adopt a sealed structure to prevent the intrusion of pollutants. When the pressure of the measured medium acts on the membrane box, its free end undergoes corresponding elastic deformation and displacement. The transmission mechanism is amplified by the lever, and the measured pressure is indicated on the instrument panel by the indicator device.