head pressure

inlet pressure

i. The total pressure taken in the engine inlet as a measure of air density. This parameter is sent to the fuel control for fuel scheduling. It is normally known as P1 pressure.
ii. As it relates to the performance data on pumps, when not other-wise specified, the total static pressure measured in a standard testing chamber by a vacuum gauge located near the inlet port. Also called intake pressure, fine pressure, or head pressure.
References in periodicals archive ?
Initial production tests yielded stabilized flow rates of 769 barrels of 54 degree API oil and 435 Mcf of gas per day at 848 psi flowing tubing head pressure through a 20/64 inch choke.
Increase mixing in extruder with higher head pressure from valving or finer screen-changer screens.
The pressure can be varied to control the rate of pouring or to establish a constant head pressure above the nozzle.
The test was conducted with a flowing well head pressure of 180 pounds per square inch under natural flowing conditions.
Water units often use a scaffold or lift truck to give enough head pressure to the water column.
For the sealing side, Sarlink 4155-03, a 55 durometer A compound, meets the ASTM F477 specification for elastomeric gaskets used in joining plastic pipes in low head pressure drainage and agricultural applications.
As the screen becomes occluded, head pressure rises and eventually causes the wire cloth to fail.
The TRM3 sand flowed for 2 hours at a stabilised flow rate equivalent to 1,742 bpd through a 1/4-inch choke, with a flowing tubing head pressure of 500 psi.
A maximum flow rate of 3,700 bbl/d (stabilised rate of 3,450 bbl/d) of 33A API oil was attained through an 88/64" choke with a flowing tubing head pressure of 270 psi, a gas-oil-ratio (" GOR ") of 540 cf/bbl, and no water or sand production.
ii) a pair of barrier zones respectively disposed at either longitudinal side of the central zone, between the central zone and the opposing containment member edges, the barrier zones and the containment member edges forming respective upstanding longitudinal barrier cuffs, and wherein the central zone has a greater air flow according to the Air Permeability Test than the barrier zone and the barrier zone has a greater hydrohead according to the Hydrostatic Head Pressure Test than the central zone.
Common ASD sensor applications for monitoring, detection and control include: conveyor system jam, overload, multiple section interlock integrity; pump system loss of head pressure (open discharge line, pump runs dry, etc.
One sensor module measures the hydrostatic pressure (HP) and the other one the head pressure (LP).