A diving regulator, in general, is a device that regulates the pressure of breathing gas for divers. A regulator typically reduces pressure in the breathing gas and delivers it to a diver. Diver regulators can also be used for controlling other gas pressures. Read on for more information. Below are some examples:
First stage
The first stage of a dive regulator is attached to a diver's air tank. It regulates the air pressure before it enters into the diver’s air hose. The second stage is composed of a purge valve and a mouthpiece. It delivers air directly into the diver's mouth, and removes any waste gases as necessary. Both of these stages are interconnected to ensure safe and comfortable diving. What are the differences between them? Learn more.
The first stage is comprised of two separate parts, and the second is made of a plastic material. Both stages can be operated mechanically and use a valve for controlling the release of gas. The air is supplied by the first stage. While the second stage can be used for secondary purposes, it provides air for the main stage. Connectors connect the first stage to a rebreather. This connector enables the diver to share air with the rebreather, allowing the diver to breathe underwater comfortably.
Mouthpiece
The mouthpiece of your diving regulator is an essential part of your apparatus. It is a flattened oval tube with a curved flange that fits between your teeth and lips. While you breath, the mouthpiece seals against your inner ear. You must keep the mouthpiece in its place by biting down on the tabs. Mouthpieces cost very little and can be easily removed. So it is important that you find one that is right for you.
A mouthpiece for your scuba regulator can be made of high-quality materials to withstand frequent use and long-term storage. The quality of your mouthpiece will not only save you headaches but also help you save money on replacing parts. Here is a guide on regulators and mouthpieces. Also, you'll learn about maintenance of your dive regulator and how to care. To learn more about how to maintain your regulator's mouthpiece, please read Do you pick-up rubbish while diving?
Exhaust valve
By manually pressing a lever or diaphragm, the diver controls the flow through the regulator. The exhaust valve allows air to exit through the regulator, which is only one way. This valve stays closed when the diver does not exhale, preventing water from entering regulator. The second stage of the regulator is a second air source, which can be a BCD inflation/deflation hose.
In one embodiment, regulator and diver's lips are in fluid contact. The diver inhales using mouthpiece 26 a, and then exhales through regulator valve 24 d.
First stage: Diaphragmtype
A diaphragm-type dive regulator's first stage has two parts. It has a lever that is located within the air chamber, and a diaphragm which presses in when water pressure rises. This allows for a balance between the water and air pressure inside. Because it prevents water from coming into contact with its internal mechanism, this type of regulator is often used by scuba divers.
There are two types of diving regulators: the piston-type and diaphragm type. Both types of regulators sense water at the ambient pressure and then deliver air at a pressure that is similar to the surrounding body. Piston-type regulators offer greater reliability and simplicity, but also have their drawbacks. Piston-type regulators are more susceptible to freezing conditions, as well as dirty water. Clear water is best for recreational diving.