Bypass (valve)
Encyclopedia
In rebreather
breathing sets, a bypass is a hand-operated valve
that can be used to let more oxygen
(or other breathing gas) into the breathing system, by-passing the cylinder's flow rate control valve.
Rebreather
A rebreather is a type of breathing set that provides a breathing gas containing oxygen and recycled exhaled gas. This recycling reduces the volume of breathing gas used, making a rebreather lighter and more compact than an open-circuit breathing set for the same duration in environments where...
breathing sets, a bypass is a hand-operated valve
Valve
A valve is a device that regulates, directs or controls the flow of a fluid by opening, closing, or partially obstructing various passageways. Valves are technically pipe fittings, but are usually discussed as a separate category...
that can be used to let more oxygen
Oxygen
Oxygen is the element with atomic number 8 and represented by the symbol O. Its name derives from the Greek roots ὀξύς and -γενής , because at the time of naming, it was mistakenly thought that all acids required oxygen in their composition...
(or other breathing gas) into the breathing system, by-passing the cylinder's flow rate control valve.