The pressure difference between two points in a system. For example, the difference in pressure between the upstream and downstream taps of an orifice plate, used to measure volume passing through the orifice.
1. The difference in pressure between two points of measurement. 2. The static pressure difference generated by the primary device when there is no difference in elevation between the upstream and downstream pressure taps.
In a Dust Collection System usually refers to the difference in pressure (typically measured in inches of water column W.G.) between the dirty side of the baghouse and the clean side of the baghouse. Essentially this yields the pressure drop or resistance to the air-flow through the filter bag.
The difference between suction pressure and discharge pressure of a pump; increment of pressure added by each pump operating in series in pumping stations; pressure drop or loss between inlet and outlet of a filter, meter, or other accessory offering resistance to flow.
The difference in pressure between the upstream and downstream sides of a filter. Difference in pressure between two points in a system. In filters, this is usually measured between the inlet and outlet of the filter housing, and is a determining factor of filter service life.
(1) The difference in pressure between two given points. (2) The combined pressure caused by the debris, filter cake, precoat and septum, expressed as ("delta P"). (3) The effluent pressure minus the influent pressure.
The difference in pressures at two points in a water system. Differences may be due to variations in elevation, or to friction losses, or to pressure drops caused by resistance to water flow through pipes, softeners, filters, or other devices.