A typical application for differential pressure is the level measurement in pressurised or vacuumed vessels. These may be filling tanks in breweries, stock deaerators in the paper industry, reactors in the chemical industry or condensate collector tanks in power plants. Another area of application is the flow measurement in pipelines via orifice plates or pitot tubes.
It is often used in the steam generation and distribution or in the biogas production. The differential pressure measurement between input and output for the monitoring of any occurring contamination of the filters or function and wear of the pumps is also widely used.
The requirements and operating conditions for pressure measurements can be very different: high static pressures up to 9.140 psi (630 bar), minimum pressure differences of a few mbar, high process temperatures up to 750 °F (400 °C), strong temperature fluctuations, extreme continuous vacuum, suction and pressure surges, abrasion by the measuring medium.