Water and Wastewater Terms Beginning G

A B C D E F G H I J K L M N O P Q R S T U V W Y Z

gauge pressure

The pressure within a closed container or pipe as measured with a gauge. In contrast, absolute pressure is the sum of atmospheric pressure (14.7 pounds per square inch or 1.0 atmosphere) plus pressure within a vessel (as measured with a gauge). Most pressure gauges read in gauge pressure (pounds per square inch gauge pressure) or kilopascals.