A diving regulator is basically a device which regulates the breathing gas pressure for a diver. A regulator typically reduces pressure in the breathing gas and delivers it to a diver. However, a dive regulator can also be used to control other gas pressures. More information is available below. Below is a list of types of regulators.
The first stage
The diver's water tank houses the first stage of a diving regulator. The regulator regulates air pressure and then releases it into the diver's hose. The second stage includes a mouthpiece with purge valve. This valve delivers air directly to the diver's nose and removes waste gas when needed. These two stages work together to ensure a safe and comfortable dive. But what are the differences? Read on to learn more.
The first stage is comprised of two separate parts, and the second is made of a plastic material. Each stage is mechanically controlled and has a valve that regulates the gas release. The first stage supplies the air for the initial stage while the second stage is for secondary use. A connector connects to the first stage and the rebreather. This connector allows the diver to share oxygen with the rebreather and allows him to comfortably breathe underwater.
Mouthpiece
A mouthpiece for your diving regulator is a necessary part of the diving apparatus. It's a flattened oval tube, with a curved mouthpiece that fits between your lip and teeth. While you breathe, it seals against your inside mouth. To hold the mouthpiece in place you need to bite on both sides of the tabs. Mouthpieces are easy to replace and inexpensive so be sure to pick one that suits your needs.
To withstand repeated use and long-term storage, a mouthpiece can be made from high-quality materials. You will save money on replacement parts and headaches by having a quality mouthpiece. Here is a guide on regulators and mouthpieces. This guide will also provide information about how to maintain your regulator. Also, be sure to read our article Do you pick up rubbish while diving to learn more about maintaining the mouthpiece for your regulator.
Exhaust Valve
The diver controls the flow of air through the regulator by manually depressing a diaphragm or lever. The regulator's exhaust valve, which is only one-way, allows for exhaled oxygen to escape. This valve remains closed when the diver is not exhaling, keeping water from entering the regulator. The regulator's secondary stage contains a second source of air. It can be either a BCD inflation/deflation orifice.
In one embodiment, the diver’s regulator and mouthpiece are in fluid communication. The diver inhales from mouthpiece 26 a while breathing through the re-located exhaust valve 24 d. The diver exhales through the mouthpiece, which is connected to the regulator valve 18.
First stage, Diaphragm type
The diaphragm, or first stage, of a dive controller is made up of two parts. A lever sits within the chamber and a diaphragm. This diaphragm pushes in when there is more water pressure. This balances the air pressure and water inside. Because it prevents water from coming into contact with its internal mechanism, this type of regulator is often used by scuba divers.
Diving regulators have two basic operational designs: diaphragm-type and piston-type. Both types sense water at ambient pressure, and deliver air at pressures similar to those around them. Piston-type regulators are more reliable and simple, but they have their disadvantages. Piston regulators can freeze and get dirty, which is bad for diving. Clear water is the best environment for recreational diving.