Diaphragm Pressure Gauges

Diaphragm Pressure Gauges

Diaphragm pressure gauges measure pressure using a flexible diaphragm sensing element. When pressure is applied, the diaphragm deflects proportionally, converting mechanical movement into a visual indication via a pointer on a calibrated dial. Constructed with corrosion-resistant materials such as stainless steel, Hastelloy, or Monel, diaphragm gauges reliably handle aggressive, viscous, or particulate-laden process media.

Their primary advantage is their ability to accurately measure pressures in challenging environments where traditional gauges may fail, such as in corrosive chemicals, slurries, or media prone to clogging. The diaphragm isolates the measuring mechanism, providing enhanced protection, ensuring consistent, reliable performance, and longer instrument life in severe operating conditions.

Typical applications of diaphragm pressure gauges include chemical processing, wastewater treatment, food and beverage production, pharmaceutical manufacturing, and petrochemical industries. They are particularly useful in measuring pressures of acids, bases, sludges, viscous fluids, and sanitary or sterile processes, where contamination or plugging could affect gauge accuracy.

Engineered for robustness, diaphragm pressure gauges often feature liquid-filled housings for vibration damping and can include certifications for hazardous environments (ATEX, IECEx), ensuring precise and safe operation in critical industrial control applications.