Title: Scuba Diving Regulators (First and Second Stages)
Headings: How a Scuba Regulator Works
How a Scuba Regulator Works
What a Scuba Diving Regulator Does
The purpose of a scuba diving regulator is to reduce the high pressure air in a scuba tank to a breatheable pressure on demand.
Regulator Terminology
How Regulators Work
The Regulator First Stage:
The Regulator Second Stage:

Content: The second stage uses a flexible silicone diaphragm to seal water out and air inside. There is a lever that rests against the diaphragm on the interior of the second stage. This lever operates the valve in the inlet fitting. When a diver inhales, he lowers the air pressure inside the second stage by taking some of its air into his lungs. This allows water on the outside to push the diaphragm in slightly, which pushes on the lever, opening the valve, and allowing air to rush in until the pressure equals the outside water pressure, which is ambient pressure. The simple genius of this design is that the water pressure surrounding the regulator creates the ambient pressure. The result is that the second stage automatically adjusts to the diver's depth. Was this page helpful? Thanks for letting us know! Share
Pin
Email
Tell us why!