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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.
Schematic diagram of the breathing loop of the Interspiro DCSC seni-closed circuit rebreather 1 Nitrox feed gas cylinder 2 Cylinder valve 3 Pressure gauge 4 Feed gas first stage regulator 5 Dosage chamber 6 Dosage mechanism with control linkage from bellows cover 7 Hinged bellows counterlung 8 Bellows weight
The mechanism of diving regulators is the arrangement of components and function of gas pressure regulators used in the systems which supply breathing gases for underwater diving. Both free-flow and demand regulators use mechanical feedback of the downstream pressure to control the opening of a valve which controls gas flow from the upstream ...
The supply hose is connected to one side of the regulator body and supplies air to the mouthpiece through a non-return valve, and the exhaled air is returned to the regulator housing on the outside of the diaphragm, also through a non-return valve on the other side of the mouthpiece and through another non-return exhaust valve in the regulator ...
The Halcyon RB80 is a non-depth-compensated passive addition semi-closed circuit rebreather of similar external dimensions to a standard AL80 scuba cylinder (11-litre, 207-bar aluminium cylinder, 185 mm diameter and about 660 mm long).
A means of adding gas to the bladder, generally a low pressure direct feed [notes 1] or power inflator [notes 2] that injects gas from a low pressure hose from a diving cylinder's first stage regulator to the bladder of the BC, and usually an oral inflation option. Gas flow is controlled by a spring loaded, normally closed, manual operated ...
In a few models of full face mask a mouthpiece like those used on diving regulators is fitted, which has the same function as an oro-nasal mask, but can further reduce the volume of the external dead space, at the cost of forcing mouth-breathing. A smaller volume around the mouth increases distortion of speech.
A diver in a pool wearing an AGA full face mask A diver wearing an Ocean Reef full face mask Head protection helmet for use with Ocean Reef full face diving mask. A full-face diving mask is a type of diving mask that seals the whole of the diver's face from the water and contains a mouthpiece, demand valve or constant flow gas supply that provides the diver with breathing gas. [1]
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