Generally speaking, a diving regulator is a device that controls the pressure of breathing gas for a diver. A regulator typically reduces pressure in the breathing gas and delivers it to a diver. An alternative way to regulate gas pressures is to use a dive regulator. Read on for more information. Below is a list of types of regulators.
First stage
The first stage of a dive regulator is attached to a diver's air tank. It regulates air pressure before it enters the diver's air hose. The second stage, which includes a mouthpiece, purge valve, and mouthpiece, delivers air directly through the diver’s mouth. Both of these stages are interconnected to ensure safe and comfortable diving. What are their differences, you ask? Continue reading to learn more.
The first stage has two separate components, while the second stage is made of plastic. Both stages have a mechanical control system and a valve to regulate the amount of gas released. The first stage supplies the air for the initial stage while the second stage is for secondary use. 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
A mouthpiece, which is used to control your diving regulator, is an integral part of the diving apparatus. It's a flattened oval tube, with a curved mouthpiece that fits between your lip and teeth. It seals against the inside of your mouth while you breathe. You can bite the tabs on either end of the mouthpiece to hold it in place. 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's a guide for regulators and mouthpieces. Learn more about maintaining your dive regulator, and how to take care of it. To learn more about how to maintain your regulator's mouthpiece, please read Do you pick-up rubbish while diving?
Exhaust valve
The regulator's flow is controlled by the diver using a dial or lever. Exhaled air exits the regulator through the exhaust valve, which is one-way. This valve is closed even when the diver isn't exhaling. It prevents water from getting into the regulator. The regulator's second stage is an additional air source. This can be a BCD inflation/deflation tube.
One embodiment shows the regulator and diver's mouthpiece in fluid communication. The diver inhales through mouthpiece 26a, while breathing through the repositioned exhaust valve 24d.
First stage of Diaphragm-type
The diaphragm type first stage of a dive regulator is composed of two main components: a lever which sits inside the air chamber and a dial that presses in when the water pressure increases. This allows for a balance between the water and air pressure inside. This regulator prevents water vapor from entering its internal mechanism and is used often by scuba divers.
There are two types of diving regulators: the piston-type and diaphragm type. Both types can sense water at atmospheric pressure and supply air at the same pressure as the surrounding body. Piston-type regulators are more reliable and simple, but they have their disadvantages. Piston-type regulators may be susceptible to freezing conditions or dirty water. Clear water is ideal for recreational diving.