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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.
Scuba regulators with layers of plastic on the outside are unsuitable for cold water use. Insulating the first or second stage inhibits rewarming from the surrounding water and accelerates freezing. [35] Environmental isolation kits on most first stages can help to some degree, at least for the duration of current CE breathing simulator tests.
Diving regulator; Downstream scuba manifold; Draeger DM20 oxygen rebreather system; Dräger DM20 oxygen rebreather system; Dräger DM40 mixed gas rebreather system; Dräger Modell 1915 Bubikopf helmet; Dry suit inflation hose
Scuba equipment: Primary cylinder(s), carried back-mounted or side mounted and open circuit regulator(s), or rebreather sets. Alternative air source such as bailout bottle or pony bottle, and decompression cylinders and their associated regulators. Secondary demand valve (Octopus). Sometimes a full-face diving mask is used.
A scuba cylinder valve or pillar valve is a high pressure manually operated screw-down shut off valve fitted to the neck of a scuba cylinder to control breathing gas flow to and from the pressure vessel and to provide a connection with the scuba regulator or filling whip. [1]
SCUBA became the generic term for any type of self-contained breathing set for diving, and soon the acronym SCUBA became a common noun – "scuba" – all in lower-case. "Scuba" was a trademark for a time – used by Healthways, now known as Scubapro – one of the competitors of U.S. Divers. [citation needed]