The sum of the static and velocity pressures.


Related Terms

INFERENTIAL FLOW METER

A flow meter in which the flow is determined by measurement of a phenomenon associated with the flow, such as a drop in static pressure at a restriction in a pipe, or the rotation of an impeller or rotor, rather than measurement of the actual mass flow.

SUPERIMPOSED BACK PRESSURE

The static pressure existing at the outlet of a pressure relief device before ihe device operates. It is the result of pressure in the discharge system from other sources.

COLD DIFFERENTIAL TEST PRESSURE

the inlet static pressure at which the pressure relief valve is adjusted to open on the test stand. This pressure includes the corrections for service conditions of back pressure or temperature or both.

DRAFT DIFFERENTIAL

The difference in static pressure between two points in a system.

TOTAL PRESSURE

The sum of the static pressure and the velocity pressure of the gas.

STATIC PRESSURE

The measure of potential energy of a fluid.

WINDBOX PRESSURE

The static pressure in the windbox of a burner or stoker.

STATIC PRESSURE

The pressure of a gas measured at a point where the gas velocity is zero.

BREAKING PIN DEVICE

A device designed to relieve pressure resulting from inlet static pressure by the fracture of a loaded part of a pin.

DRAFT LOSS

A decrease in the static pressure of a gas in a furnace or boiler due to flow resistance.

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