Generally speaking, a diving regulator is a device that controls the pressure of breathing gas for a diver. It most commonly reduces pressurized breathing gas to ambient pressure and delivers it to the diver. However, a dive regulator can also be used to control other gas pressures. Continue reading for more information. Below is a list of types of regulators.
The 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 includes a mouthpiece with purge valve. This valve delivers air directly to the diver's nose and removes waste gas when needed. Both of these stages are interconnected to ensure safe and comfortable diving. But what are the differences? Continue reading to learn more.
The first stage consists of two distinct parts. The second stage is made from 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. Connectors connect the first stage to a rebreather. The connector allows the diver and rebreather to share air, allowing them to both breathe underwater comfortably.
Mouthpiece
A mouthpiece is essential for your diving regulator. It's a round, flattened tube that fits between your lips and 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 can be easily replaced and are cheap so make sure you choose the right one for your mouth.
A mouthpiece for your scuba regulator can be made of high-quality materials to withstand frequent use and long-term storage. Quality will save you both time and money. Here is a guide on regulators and mouthpieces. Also, you'll learn about maintenance of your dive regulator and how to care. 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 exhaust valve is one-way and allows exhaled air to exit the regulator. This valve stays closed when the diver does not exhale, preventing water from entering regulator. The second stage of regulator can be used as an air source. It could be a BCD inflation/deflation hose.
One embodiment shows the regulator and diver's mouthpiece in fluid communication. The diver inhales via mouthpiece 26 a and breathes through the re-located exhaust tube 24 d.
First stage: Diaphragmtype
The diaphragm-type first stage of a dive regulator has two main parts: a lever that sits within the air chamber and a diaphragm that presses in when water pressure increases. This allows for an equilibrium between the water pressure outside and inside. This regulator prevents water from getting in contact with the internal mechanism. It is commonly used by divers.
Two basic designs are available for diving regulators: piston-type or diaphragm-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-type regulators are susceptible to freezing conditions and dirty water, which is undesirable for diving. Clear water is ideal for recreational diving.