Title: How a Scuba Diving Regulator Works - AquaViews - Leisure Pro
Headings: How a Scuba Diving Regulator Works
How a Scuba Diving Regulator Works
What is a Scuba Diving Regulator?
How Does a Scuba Regulator Work?
Parts of a Scuba Diving Regulator
First Stage Regulator
Second Stage Regulator
Leisure Pro's AquaViews Newsletter

Content: Divers then rely on scuba regulators to decrease the stored high-pressure air to a much safer pressure level every time they inhale through the connected mouthpiece. Parts of a Scuba Diving Regulator
Scuba regulators do the critical job of delivering breathable air from pressurized air tanks to divers by working in two stages: First Stage Regulator
As mentioned above, air is compressed and stored in the tank under high pressure, usually about 3,000 pounds per square inch (psi). In order to reduce this pressure, the regulator first stage, which attaches to the tank valve, lowers the tank pressure to intermediate pressure (about 140psi) for release into a hose that leads to the regulator’s second stage. The valve in the first stage opens to let some air into the hose and then closes again. The exact process, of course, also depends on your scuba tank’s valve type. The regulator also compensates for the decreased pressure in the tank as the air is used and as the diver changes depth, which changes the ambient water pressure. Second Stage Regulator
The second stage of a scuba regulator is the part that goes into your mouth. It contains a mechanism that further reduces the intermediate pressure in the hose coming from the first stage to the surrounding water pressure, making it comfortable and easy to breathe. As with the first stage, the second stage also contains a piston or diaphragm construction which starts and stops the airflow.