ESP is often measured with what type of gauge?

ESP, or external static pressure, is typically measured using a Magnehelic gauge. This type of differential pressure gauge is specifically designed to measure low-pressure differences, which makes it ideal for applications involving air distribution systems. In the context of HVAC (Heating, Ventilation, and Air Conditioning), the Magnehelic gauge can effectively provide accurate readings of pressure changes across filters, ducts, and other components of an air distribution system.

The design of a Magnehelic gauge allows for easy visualization of the pressure being measured, as it often features a simple dial that indicates pressure levels. This characteristic is particularly useful in diagnosing system performance and ensuring optimal airflow in various HVAC applications.

While other gauges, such as manometers, pressure gauges, and digital airflow meters, have their purposes in measuring pressure and airflow, the Magnehelic gauge is preferred for its accuracy, ease of use, and suitability for low-pressure environments, which are common in air distribution systems.