What Is A Diaphragm Pressure Gauge?

A capsule pressure gauge is an instrument used to measure gas or liquid pressure, which consists of a capsule and a pointer system.

A capsule is a sealed container with a thin film that deforms and pushes the pointer system to indicate the pressure value when gas or liquid pressure is applied to the capsule.

Diaphragm pressure gauges are commonly used in industry, laboratories, and homes to measure pressure in the negative pressure to moderate pressure range. They typically have high accuracy and stability, and are easy to maintain and calibrate.