Introducing our high-quality diaphragm-sealed pressure gauge, engineered for precision measurement under micro-pressure, negative pressure, and low-pressure conditions. As one of the leading suppliers in China, our pressure gauge leverages a unique diaphragm design—consisting of two corrugated diaphragms welded to form a robust pressure sensing element. This innovative instrument features a sealed isolation structure that makes it ideal for measuring humid, corrosive, or lightly dusty gas and liquid media. Its versatile applications span low-pressure monitoring fields including ventilation, gas management, and environmental protection.

Our sealing and isolation device is comprised of an isolation diaphragm, a sealed cavity, and specialized filling fluid. This design effectively isolates the measured medium from the diaphragm element, safeguarding it against corrosion and blockages, which guarantees reliable performance.

The core pressure-measuring component, the diaphragm pressure-sensing element, features two concentric corrugated metal diaphragms that are welded together. When exposed to pressure, these diaphragms exhibit axial elastic deformation, with the deformation magnitude being directly proportional to the measured pressure.

The indicating mechanism of our pressure gauge is meticulously designed, incorporating a linkage, gear transmission system, and a clear pointer scale. This mechanism enhances the elastic deformation of the diaphragm, converting it into a precise pointer deflection for easy-to-read pressure value displays.

As a trusted factory in China, we are dedicated to providing reliable and accurate pressure measurement solutions with our innovative diaphragm-sealed pressure gauges.