Analog Pressure Gauges

Analog pressure gauges are mechanical instruments that display pressure readings through a needle and graduated dial, using technologies such as Bourdon tubes, diaphragms, or bellows to convert fluid or gas pressure into a proportional mechanical deflection. These gauges are valued for their reliability, simplicity, and complete independence from external power sources, making them well-suited for a broad range of industrial and field environments.

Available in configurations for gauge pressure, absolute pressure, differential pressure, and vacuum measurement, analog gauges cover ranges from fractions of an inch of water column to thousands of PSI. Dial sizes, connection materials, and wetted-parts composition are selected based on media compatibility, ambient conditions, and readability requirements at the point of installation.

Typical Applications

HVAC air and water pressure monitoring in commercial and industrial buildings
Process plants monitoring steam, gas, and liquid line pressures
Differential pressure measurement across filters, heat exchangers, and flow elements
Portable field gauging for plumbing and HVAC service technicians
Water treatment and utility facilities for distribution pressure indication
Manufacturing and test benches requiring simple, reliable pressure display

Popular Brands

Dwyer Instruments is a prominent manufacturer in this category, offering the Durablock line of portable gauges and a comprehensive range of differential pressure instruments. Other well-known manufacturers include Ashcroft, Wika, and Winters, each providing gauges engineered for specific industrial media and environmental requirements.