A diving regulator, in general, is a device that regulates the pressure of breathing gas for divers. It reduces the pressure of compressed breathing gas to an ambient level and delivers it directly to the diver. However, a dive regulator can also be used to control other gas pressures. Read on for more information. Below are some examples of regulators.
First stage
Attached directly to the air tank of a diver, this is the first part of a dive regulator. 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. But what are the differences? Continue reading to find out more.
The first stage comprises two parts. The second stage is made up of a single piece of plastic material. Both stages have a mechanical control system and a valve to regulate the amount of gas released. The first stage is responsible for providing air for the first stage. The second stage is intended for secondary purposes. A connector connects the first stage to the rebreather. This connector enables the diver to share air with the rebreather, allowing the diver to breathe underwater comfortably.
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. It seals against the inside of your mouth while you breathe. The mouthpiece has two tabs on either side that you bite consistently to keep it in place. Mouthpieces can be easily replaced and are cheap so make sure you choose the right one for your mouth.
For long-term storage and frequent usage, the mouthpiece of your scuba regulator should be made of high quality materials. Quality will save you both time and money. Here is a guide on regulators and mouthpieces. Here you will find out more about diving regulator maintenance and how to care for it. Our article, Do you pick up trash while diving? will provide more information about maintaining your regulator's lips.
Exhaust valve
The regulator's flow is controlled by the diver using a dial or lever. The regulator's exhaust valve, which is only one-way, allows for exhaled oxygen to escape. 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.
In one embodiment, regulator and diver's lips are in fluid contact. 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: 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. This type of regulator is frequently used by scuba divers because it prevents water coming in contact with its internal mechanism.
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 easier to use and more reliable, but have their limitations. Piston-type regulators can be affected by freezing and dirty water. This is not good for diving. Clear water is ideal for recreational diving.