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A typical nominal regulated gauge pressure from a medical oxygen regulator is 3.4 bars (50 psi), for an absolute pressure of approximately 4.4 bar and a pressure ratio of about 4.4 without back pressure, so they will have choked flow in the metering orifices for a downstream (outlet) pressure of up to about 2.3 bar absolute.
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A diving regulator or underwater diving regulator is a pressure regulator that controls the pressure of breathing gas for underwater diving.The most commonly recognised application is to reduce pressurized breathing gas to ambient pressure and deliver it to the diver, but there are also other types of gas pressure regulator used for diving applications.
The other goal of a hose clamp is to provide mechanical attachment keeping the hose attached to a barb, hose nipple, or tube. To do this the clamp is typically placed on the hose behind the first ramp of the barb or behind the raised area near the end of and completely around the circumference of the hose nipple or tube called a bead.
A fire hose (or firehose) is a high-pressure hose that carries water or other fire retardant (such as foam) to a fire to extinguish it. Outdoors, it attaches either to a fire engine, fire hydrant, or a portable fire pump. [1] Indoors, it can permanently attach to a building's standpipe or plumbing system.
Haines was born into a wealthy Quaker family with an extensive social network. [7] [8] He was the son of Caspar Wistar Haines (1762–1801) and Hannah (Marshall) Haines (1765–1828); great-grandson of Caspar Wistar (1696–1752), the glass maker; and grandson of Reuben Haines (1727–1793), the brewer and land prospector. [4]