Diaphragm seal pressure gauges are widely used in petroleum, chemical, alkali-making, chemical fiber, pharmaceutical, food, textile, and other industrial processes. They can be used to measure the pressure of media with strong corrosion, high temperature, high viscosity, crystallization, easy solidification, and solid floating matter. Additionally, they are suitable for measuring the pressure of certain media that cannot directly enter a general pressure gauge, are difficult to clean due to precipitated material, or require the prevention of material accumulation.

These issues can be resolved by using a diaphragm-seal pressure gauge, which consists of a diaphragm isolator and a general pressure gauge.