A diving regulator, in general, is a device that regulates the pressure of breathing gas for divers. It most commonly reduces pressurized breathing gas to ambient pressure and delivers it to the diver. A dive regulator can also control other gas pressures. Read on for more information. Here are some types regulators:
First stage
Attached to a diver’s air tank, the first stage is a dive regulator. It regulates water pressure before it enters the diver’s hose. The second stage contains a purge and mouthpiece that delivers air directly from the regulator to the diver's mouth. These two stages work in tandem to ensure a comfortable and safe dive. What are their differences? Learn more.
The first stage comprises two parts. The second stage is made up of a single piece of 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. A connector connects to the first stage and the rebreather. The connector allows the diver and rebreather to share air, allowing them to both breathe underwater comfortably.
Mouthpiece
A mouthpiece for your dive regulator is a vital part of your diving apparatus. It is a rectangular tube with a flattened flange and fits between your teeth. While you breath, the mouthpiece seals against your inner ear. To keep the mouthpiece in place, you must bite down on each tab. Mouthpieces come in a variety of prices and can be replaced easily. It is important to find the one that best suits your unique mouth and personality.
For long-term storage and frequent usage, the mouthpiece of your scuba regulator should be made of high quality materials. Its quality will not only save you from headaches, but it will also save you money on replacement parts. Here is a guide on regulators and mouthpieces. You'll also learn more about dive regulator maintenance, including how to care for your regulator. To learn more about how to maintain your regulator's mouthpiece, please read Do you pick-up rubbish while diving?
Exhaust valve
By manually depressing a lever or dial, the diver controls air flow through the regulator. 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 second stage includes a second air source. This could be a BCD inflation/deflation pipe.
One embodiment shows the regulator and diver's mouthpiece in fluid communication. The diver inhales 26 a through mouthpiece 26 and then breathes through the repositioned exhaust pipe 24 d.
First stage of Diaphragm-type
A dive regulator's diaphragm first stage is a lever-type device that sits inside an air chamber. The diaphragm presses in water pressure to activate it. This allows for a balance between the water and air pressure inside. This type of regulator is frequently used by scuba divers because it prevents water coming in contact with its internal mechanism.
The two main operational designs of diving regulators are the diaphragm and piston types. Both types detect water at ambient pressure and provide air at a pressure comparable to the surrounding area. Piston-type regulators have a greater reliability and are simpler to use, but they do have some drawbacks. Piston-type regulators can be affected by freezing and dirty water. This is not good for diving. However, most recreational diving occurs in clear water.