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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 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 ...
A rubber O-ring forms a seal between the metal of the cylinder valve and the metal of the diving regulator. Fluoroelastomer (e.g. viton) O-rings may be used with cylinders filled with oxygen-rich breathing gas mixtures to reduce the risk of fire. [18] There are two basic types of cylinder valve to regulator connection in general use for scuba ...
Commercial diving operations are often required for maintenance and repair work in water known to have high counts of E. coli and other pathogens. Diving equipment used in these environments should preferably isolate the diver completely from the environment, and the diver and equipment should be decontaminated by competent persons after ...
A diving cylinder or diving gas cylinder is a gas cylinder used to store and transport high pressure gas used in diving operations.This may be breathing gas used with a scuba set, in which case the cylinder may also be referred to as a scuba cylinder, scuba tank or diving tank.
A scuba manifold is a device incorporating one or more valves and one or more gas outlets with scuba regulator connections, used to connect two or more diving cylinders containing breathing gas, providing a greater amount of gas for longer dive times or deeper dives. An isolation manifold allows the connection between the cylinders to be closed ...
Freeflow (also free flow and free-flow) in underwater diving apparatus is a continuous flow of gas from a storage or supply unit. In scuba diving it is usually undesirable and considered a malfunction, while in surface supplied diving it may be a malfunction or a user selected option in demand systems, or the standard mode of operation in freeflow systems.
The systems used to supply air through the hose to a demand valve mouthpiece, are either 12-volt electrical air pumps, gasoline engine powered low-pressure compressors, or floating scuba cylinders with high pressure regulators. These hookah diving systems usually limit the hose length to allow less than 7 metres depth.
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