How Scuba Regulators Work
POSTED BY admin on Jan 30, 2008 under Recreation and Sports
Scuba regulators reduce the air pressure from the tank to ambient pressure to allow us to breathe underwater. The regulator is in two stages; the first reduces the tank pressure to an intermediate pressure; the second stage, which is usually incorporated into the mouthpiece in modern recreational scuba equipment, reduces it further so that we can breathe at ambient pressure.
Scuba regulators provide air on demand; that is to say that when the diver breathes in the demand valve is opened to provide air and when the diver exhales the air demand valve is closed and the stale air is vented into the water.
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